Triumph bonneville fork oil weight. ) I used the air gap to set my forks.

Triumph bonneville fork oil weight 12 HP Aerodynamics and weight: Frame type: Tubular steel cradle. Pictures. My local shop carries 15, 10, 7. 8° Trail : 88 mm (3. We've listed the recommended engine oil grades and where possible, the quantity you'll need. Our Price: £ Changing the fork oil on your motorcycle can help keep the internal parts in good condition and improve rebound and dampening. I just added the Intimanators without modifying or replacing tubes. It depends on the ride you want. The BelRay (5wht) has a Centistoke of 17. Language. It's time to change the front fork oil and springs on my Triumph T100. Nov 17, 2014 417 113 Triumph Bonneville T100 Black, Ohlins Forks / Hagon Rear Shocks. I'm going with a 7. £ 6. I used Ikon Progressive Suspension with some aftermarket pre-load caps. 5 cSt Solkoline Pro RSF 10 = 47. I'm fairly heavy @230lbs. Show all This is a quick fork oil change, to really get all the old stuff out you need to strip the forks completely. Those springs significantly helped counter the brake dive and also let me set suspension sag correctly without having put in long spacers for preload to prevent bottoming (I weight 86 kilograms with gear). Posts: 38 Triumph Bonneville Twins . Download recommendation. 10! It's heavier oil than stock!!!! Why not try simple progressive springs in the front without adjusting the weight or quantity of oil in the forks Find many great new & used options and get the best deals for FORK BUSHING OIL DUST SEAL REBUILD KIT TRIUMPH BONNEVILLE T120 2017 at the best online prices at eBay! Free shipping for many products! www. Nothing lasts anymore! The top of the forks label list many different oils long out of existance one of which is Mobil ATF and the others imply ATF as well (Esso Glide, Texomatic F etc. Discussion in 'Technical Help' started by JULIAN WW, Nov 11, 2020. I could easily get carried away with the upgrades if I'm not careful. gunner #498954 07/25/13 4:36 am. Joined: Apr 2017. Flashp, Jun 30, 2020, in forum: Bikes for Sale. Bottle_Fed Two Stroke. Related products. ) I used the air gap to set my forks. I used 10 weight oil. 5w. Press the forks up and down a few times to empty out any oil in the shock absorber valves and do final suck out of old oil. B. Add a length of clear vinyl tubing to extend the extractor's reach to the bottom of the fork tube, if necessary. Fork Oil RR 10 View the specifications for the Bonneville T120 models. Loosen the lower pinch bolts. Come join the discussion about performance, racing, cafe racers, bobbers, riding, modifications, Silkolene and Rock oil make fork oil thick enough for a 650 Triumph. " For the Bonneville is says you want the oil level 120 mm below the inner tube's upper surface, and it should take 484 cc or oil. I did not measure air gap because I'm lazy and didn't know I'm starting to think that with the basic inards of our forks that oil viscosity does in fact affect compression. c. 2012 - 12. Torco RFF 10 = 19. 5w gives a decided different feel of fork. The front forks on my air-cooled Triumph Bonneville are basic 41 mm right-side-up units with zero adjustability. The other side of this is that thicker fork oil tends to be affected by temperature more. I would never thought to feel such a dramatic difference. There is a Kawasaki (KLH15-10) listed on the oil chart. Like GP said, you could end up with super-stiff forks, which would be extremely dangerous. Replies: 16 Views: 2,731. 6 kg (451. Ø41mm cartridge forks Rear Suspension Twin RSU’s, with pre-load adjustment Wet Weight 520 lb (236 kg) Fuel Consumption Fuel Consumption I replaced the fork oil in my Bonneville last week. climate. Scoot65 Nov 8, 2023. 2005 Aegean Blue Bonneville - Intiminators and Thruxton preload adjusters up front, From my perspective Bel-Ray is the gold-standard for fork oil. and. The Triumph Forum. FCR, Uni, 813 cams, Works shocks, drilled Ricor Still a Bonneville My 2007 Bonneville handles great You need to look at the maker's charts to determine your weight/load range so it's in the sweet spot. You might also be interested in. 36 cSt The T-120 manual calls for Kayaba Step-by-step instructions for assembly of Triumph 1969-70 650 and 500 front fork legs. Front Page Forums General Chat most fully synthetic then adjustment to make the specific grade 5w/10w/40 etc so they definitely do mix and also it's fork oil that means weight 5wt/7. Fluid was originally 10 weight, I have used 15 weight. Hello, I’m new here and just purchased a 2004 bonneville t100 and was wondering what oil weight to use? The previous owner was using a combo of 2quarts 20w50, 1quart 10w30 and the last being 5w20. /Leave the wheel in place until you loosen the dust-excluder from the slider. With T120 Right tube ( with damper) should be 126mm, left tube ( without Triumph 650 Workshop Manual recommends 20-weight in manual Section A2 and 1/3rd pint (200 c. You should be able to specify the spring rates best suited to your weight and the kit should include fork oil. Posts In his instructions he strongly recommends 10 weight oil in the forks. 5, 5wt oils. 30 Centistokes. All our delivery costs are calculated on total weight, this includes the weight of both the products and the packaging. Triumph Rat Motorcycle Forums. Cartridge style forks use a shim stack to control damping, the more fork oil pressure on the shim stack the more they flex - kind of a variable rate keeping the forks from becoming too harsh. Re: a65 fork oil weight. Just went through the factory service manual and did an oil change to help any first timers wrench on this bike: Included are all tools and R-Spec 22 Triumph Street Twin 20 CanAM Ryker 900 14 Honda CB1100 18 Yamaha XT250 16 Moto Guzzi V7 II 17 Yamaha TW200 12 Triumph Bonneville 02 Sportster 1200 Sport Gross Weight [kg]: 0,991 Item number: 105931 Our price: £ Fork oil TRIUMPH Bonneville T100 110th Anniversary Edition (986MF) 68 hp 01. My fork oil was off by 60 ml in one fork leg as compared to the other. I phoned Hagon's who said that because the progressive spring displaces more oil than the standard spring, less oil is required. Triumph called for ATF which equals approx. Front Page Forums General Chat Technical Help. It's cSt @40c is 15. 2009 Triumph Bonneville SE / 2011 BMW R1200RT / 1975 springs I couldn't find the recommended belray 15w so I rang my mechanic & he said you could use ATF as it is the same weight & would last at least 5 time's I put Progressive brand progressively-wound springs in my Bonneville principally to address what I thought was excessive brake dive. So the bike I have is a 2013 bonneville SE. front end I know there's been discussion on the board about these little devices you install by just draining the fork oil and pulling the springs out, dropping the devices weight etc etc For what it is worth LMT . If you are under 210# body weight, I would recommend Belray 5w fork oil. Triumph 675 Forums Glenn, even using a heavier fork oil will change the dampening characteristics. ebay. Beyond that which weight you choose & what oil height you run depends upon what you want to achieve. Fork oil interchange or all fork oils are not created equal From that thread: For example one manufacturers 10 weight is not equal in viscosity to another. These aren't high performance forks but try and Here is the complete file on oil "weights". various differnt rear shocks are available from cheap to £$100's it seems more noticeable. 0 pounds) Twin, four (7. 2013 - 12. I'm in the process of changing my fork oil for a lighter weight, I figured I would try this first before spending the money on matris emulators, 2017 Triumph Bonneville T-120 Black, 2020 Triumph Bonneville Bobber Black, 2016 Triumph Thruxton R, 2022 Speed Triple RS, 2013 Triumph Thunderbird Storm The Triumph Forum. I read all sorts of threads before I started changing the fork springs on my Bonnie a couple hours ago, but I decided to change the fork oil at the same time as changing the springs and apparently confused the fact that you can change springs without removing the forks, but best practice is to remove the forks and measure fork oil with Hi Could anybody advise me of what is the appropriate oil to use in the front forks of a late 50s/early 60s 3TA (ie the version internal stanchion springs)? The manual referes to Castrolite, also to grade 20 or grade 30 oil. 2017 Triumph Bonneville T-120 Black, 2020 Triumph Bonneville Bobber Black, 2016 Triumph Thruxton R, 2022 Speed Triple RS, 2013 Triumph Thunderbird Storm IBA # 54578 It has to do with my weight. Second, I also used 20w fork oil that came with the springs from Hagon and they work great. I always used 20/20W in my '70, until a friend gave me a couple of cans of the old Castrol fork oil which was 30 weight. The Triumph Bonneville 900 T100 Genuine Fork Oil Seals (17-21) will perform in a wide range of climates and conditions which makes these genuine fork seals the most dependable and highest quality seals available to purchase. 2. You can do that with a steel rule, but a nice way to do it is to use a fork oil tool, which is just a stainless steel tube in a collar, connected to Mine is a 1974 T150V and it has the 230cc stickers. 5 points of weight gives a very decided change. All felt basically the same. If you don't have the correct I'm going to be changing the fork oil on my 2005 Bonneville T100 What is everybody using? Thanks, Norman. Britbike forum Forums British Motorcycle specific Brands Triumph bulletin board T120 Fork Oil: Forums Calendar Active Threads: New Sponsor post: Spring "Kickoff" Weekend Sale - 2025 by C. This seems thin to me. You can also use any high-grade Shortly after I bought my Bonneville the forks leaked oil so I put in new ribbed seals and gaiters over tubes and after about 25 years the gaiters have worn out. Type: Clear: T140 Fork Oil quantity. If you want to spend some money get full on emulators so you have full adjustability. 8 kW)) with twin cradles 41mm cartridge forks Twin () English Motos Cars Motos Tractors Aircraft Aerodynamics and weight: Frame type: Tubular steel, with twin cradles : Seat details: - Wheelbase: 1450 mm (57. Still waiting on I'm considering doing the fork springs and oil as well now. ( 2016 bike I will add. Joined: Nov 2008. Tip it out of the sliders,when you take them off. Replace both cap nuts. Since I had upgraded my forks with the Race Tech Gold Valve suspension upgrade at around 8,000 Oil change: Fill the filter (give it some time to soak in while you install the drain bolt, then add more). 5w oil (10w is stock) with a 160mm air gap, (to keep Fork oil level should be measured by height from the top of the fork tube rather than oil volume. 4 ft. You can generally pick up a set in the 200-300 range. No time for the full 100 mile road test I'd done prior with 10w. I want to do it, using the replacements from Bellacorse, but haven't found an actual how-to for that top seal. Capacity: 484 CM3 (each) Capacity: 484 CM3 (each) Normal use. ) in both "General Data" and Section A21. Sep 16, 2009 #7 I've done the conversion and it is straight HI Folks, I have a 2022 Bonneville T120. Thruxton R Fork Oil Change. K . Bob80220 Scooter. IBA#58185 The thing is Bob, 1. 7 inches Weight incl. 2013 ; Fork oil TRIUMPH Bonneville T100 Steve MCQueen SE (986MF) 68 hp 01. It says to adjust the oil level with spring out of the fork. Volume 1 (one) pint. 765 Engine Oil Rs. I'll try at some point bringing the oil weight down to 20wt maybe even 15wt depending on the 20wt results. Formula GP 10W HPX R 10W Alternatives. Engine Front fork. takes about one or two hours. S - 02/25/25 4:15 pm New 2007 Triumph Bonneville Black. Lubricants Engine Primary Cases for Triumph Electric Start Kits Read More » 2009 Triumph Bonneville SE / 2011 BMW R1200RT / 1975 Honda CB400F "For Bonneville up to VIN 380776 AND Bonneville T100 the oil level (fork fully compressed) = 120mm below inner tube" "Oil Volume Dry = 484 cc" and the weight of the bikes are similar, I just ordered some Progressive front fork springs, model 11-1126, for my 2012 Scrambler. KYB 41mm forks : Front wheel travel : 120 mm (4. This is just my opinion and how I do things. The 5wt oil is designed for bikes with cartridges or with aftermarket cartridge emulators/intiminators that use tuneable smaller holes to provide adjustable damping without tweaking fork oil at all. The 2017 Triumph Bonneville T100 and all other motorcycles made 1894-2025. Sold - Triumph Bonneville T100 Black, Ohlins Forks / Hagon Rear Shocks. 1 inches). I'm a lightweight (120lbs on a good day) and can't decide on which fork oil to use in my upcoming fork overhaul: the standard 10 weight or a lighter 7 weight. I didn't notice any difference in feel, probably because the fork oil isn't rated on weight like motor oil. I'm sure somewhere it's been addressed, but I searched and couldn't find a how to on replacing just the fork seals on a Bonneville. I did comparisons with various ATF brands versions Shell F, Pennzoil Dexron II & III, Mercedes 134A & full synthetic. TRIUMPH "THE WORLDS PRE-EMINENT MOTORCYCLE" 134 ATF (which is thinner than many ATF, about 5w). 7 pounds) Think carefully about upping the fork oil wt. Can the caps be changed without loosing any fork oil? 3. 1 HP (57. I believe this to be the same as the Kayaba that is spec. / Remove the front mudguard. of fork oil into both stanchions. Motul Fork Oil: The Triumph Forum. They informed me 561cc with an air gap of 135 mm. It's a disc braked T140 fork of late 70's vintage fitted to a '71 TR6c. Waterloo John #857574 09/03/21 6:23 am. Who are the Brain The haynes manual states  with the springs removed and the forks compressed the oil should be 120mm down from the top of the fork tube. 3" longer than stock Bonneville forks and are cartridge type forks. Back Pages; Bonnie Ref; TechNotes; Tools; Parts; Castle; Travels; 1968-69-70 Triumph 650 and 500 Front Fork Leg Assembly. A fibre washer is fitted to the drain screw. #128922 11/19/07 2:56 am. Regarding fork springs, your weight is a key factor. 1 Owner. I'm running 30wt fork oil, too. A forum community dedicated to Triumph Motorcycle owners and enthusiasts. Muj, Oct 24 , 2022, in forum: Additionally, changing to fork oil, and insuring the right amount is equal in both legs is extremely important. Like x 1; t552 Senior Member. Is it difficult? Help Support Triumph Motorcycle Forum: then change the fork oil weight. I want to thank my frien Original red fork oil specially blended for your Bonneville. Adjust Also have plenty of correct fork oil too. 5. 5wt Bonneville. We have Triumph Bonneville T120 Classic Triumph 2023 Twin, four-stroke 79. 8 pounds) Twin, four-stroke 79. Adjusting the level, and the weight of the oil, lets you control how firm/soft you like the forks. Do the fork preload caps need to be Triumph Bonneville specific or can I use any 41mm fork preload caps? I have seen some for other motorcycles or universal caps for 41mm forks that have a better price that the Triumph Bonneville specific. Joined: Jun 2002. by Triumph. 2 kgf-m or 52. Fork Oil Level Tool: All models fork oil filler & level gauge: T3880160. Dave Re: fork oil. In the factory manual the recommended fork oil is: Kayaba KHL15-10. Too bad Triumph didn't fit fork drain plugs at the bottom of the legs like on my 60's Trumpets - it makes it really easy to I'm 5' 9" and weight 203 lbs, but fully dressed in riding gear its probably 2005 Bonneville Blue 790cc, AI removed, Staintunes RC, no i’m restoring my first Triumph, I have a 76 Bonneville any recommendations on the type of fork oil I should be using ? I most strongly recommend both these no matter what weight oil you choose I haven’t put the fork oil in yet and my bike is 100% apart so it won’t be a big deal to swap them out. According to the internet, their springs have a rate of around 7 N/mm, and their oil has a viscosity of between 5 W and 10 W. Add to basket. Install springs & add fork oil per handbook for 1971. I understand that the stock for oil is 10 weight. I drain the second fork and it won't budge more than 1/4" (I think I must have compressed it once but I don't remember). The level isn't critical. 20 weight fork oil @ 150mm measured from the top (leg compressed, no springs/spacers). Looks great, try fork emulators and different fork oil weight + air gap. RRP: £19. Angled Inlet To Master Cylinder With Seat/Circlip Kit. /You don't need to drain the oil. It looks like I messed up. 0 kg (493. Rating. 0 kg (469. The Castrol did stop a leaking fork seal, though. (fork angle) 25. I would only change the weight of the fork oil (or the amount) if I were tuning the dampening of the forks, and then you make changes in small increments, such as 10w to 15w. The Bonneville Shop: Re: 1971 TRIUMPH FORK OIL AMOUNT. Jan 26, 2012 #5 1970 Bonneville T120 fork seals?? always slowly with a vice which again is a good way to put in the crankshaft oil seal in the timing cover, A forum community dedicated to Triumph Motorcycle owners and enthusiasts. In this video I'll show you h Triumph Bonneville Twins . 05 cSt Bel Ray HVI10 = 33. , always ride solo, this eliminated the front end diving on heavy braking, feels firm in the corners, but is a only a bit harsh on bumpy roads or pot holes. Hagon progressive fork What weight fork oil should I use? I think hagon recommends 20w from the stock 10w. Posts: 10,973 I use 20 or 30 weight fork oil in my external spring forks. Britbike forum Forums British Motorcycle specific Brands Triumph bulletin board T140 Fork oil: Forums Calendar Active Threads: New Sponsor post: Spring "Kickoff 1978 Bonneville T140V PX Re: T140 Fork oil. gumpt1oo Scrambler Supporting Member. My local motaparts supplier can only offer fork oil in SAE 5, SEA10 I cannot overstate the effect oil weight has on these forks. ATF is 7. 7 1/2wt. Reactions: BeautifulBC. I measured oil weight with timed flow test using cups with a pin hole. On the first fork, I drained the old oil and pumped it to remove any excess, no problem. Reactions: caramelgq. I use 20wt fork oil . (2) Suck the fork oil out with a fluid extractor (under $15) and empty into a measuring cup, then replace with that amount (plus an ounce to account for oil left in the extractor). Then 117mm/SAE 10, then 117mm/SAE15, then 105mm/SAE10, then 133mm/SAE10W-20. Joined: Jul 2019. What fork oils are I measured the oil coming out of both forks at 12oz and put back that exact same amount of oil. Come join the discussion about It takes just shy of a liter of fork oil to do both legs. Any thoughts? Would the 7W be more appropriate? If I were doing this to mine and keeping the forks stock, I would I always used 20/20W in my '70, until a friend gave me a couple of cans of the old Castrol fork oil which was 30 weight. 5 inches) Front suspension: KYB Dry weight : 228. install P etc. Posts: 135. View Save. Whether you're running an old Bonneville, a new Tiger or a 675-powered Street Triple or Daytona, we'll help you quickly find the best oil and the right oil filter. I just picked up a 2012 Bonneville SE. They do differ on older bikes. 61. So this last fiddle I've completed was to change The forks are from a 1997 F3, and are cartridge forks as opposed to the old damping rod style of the stock forks. With the stock springs, the Manual calls for 10 weight fork oil @ 143mm. What is the OEM fork oil/fluid on the 2020 Brand, weight? When swapping fork springs for a simple progressive set is there any concern about potential volume loss and replacement in the swap for any oil that travels I Check Out The 2020 Triumph Bonneville Build-Off Winners At The Factory Visitor Experience! DaveM; Oct 29 Hello, I’m new here and just purchased a 2004 bonneville t100 and was wondering what oil weight to use? The previous owner was using a combo of 2quarts 20w50, 1quart 10w30 and the last being 5w20. I ordered the oil seal and a set of progressive springs in preparation for repair because this is not covered by the warranty. 4. Flashp Jul 12, 2020 '73 Bonneville T140v Original red fork oil specially blended for your Bonneville. £ I just got done searching for info regarding fork oil type and viscosity and came up short. Even changing oil 2. Replies: 7 Views: 3,859. Discussions. Seat details - Kyb 41mm cartidge forks, Front Suspension Travel: 120 mm (4. The 2019 Triumph Bonneville Bobber and all other motorcycles made 1894-2025. S - 02/25 I assume you mean weight of oil. ) F3 forks are 1. 99. 2010 Triumph Bonneville T100 Black 228k miles. oil, gas, etc : 213. 0 kg (502. Come For your 2014, it's also wise to perform a fork oil change at this time. With new fork oil and possibly seals F3 fork internals tuned with springs and oil that match your weight and performance goals will be much better than just swapping your stanchions and springs. Early damper nuts have a hole out the top which shoots oil up to the fork cap and can starve the damper head of oil. The heavier the oil, the stiffer the ride. and there is a reason, you set the rebound dampening by choosing the fork oil weight, (Sold April 2022) 2005 Bonneville Blue 790cc, AI removed, Staintunes RC, no snorkel, inlet enlarged, - Triumph Bonneville, Thruxton, Scrambler all versions 790/865cc (2001-2016) For fitting simply take the weight off the front suspension & replace one at a time. On the highway I find 5w gives a much smoother ride. The Experts’ Choice. Front forks will be the F3 converson with stock Honda internals from '96 if I remember correctly. I'm 215lbs with gear and was wondering if anyone has installed these springs and: 1978 T140E Bonneville, 1974 Trident, 1972 Commando, 1971 Commando 1974 Commando, 1970 BSA Thunderbolt, Fork oil weight's a very individual thing, Triumph Speed Triple Forums 17K members. HawaiianTiger #466230 12/04/12 10:42 While Fork Oil with "Seal Swell" might be great to try to save a set of worn out dirt 20w oil is to heavy for a T140. As such, ATF is much too light, I always used 20/20W in my '70, until a friend gave me a couple of cans of the old Castrol fork oil which was 30 weight. Replies: 7 Views: 1. 1971 TRIUMPH FORK OIL AMOUNT #857543 09/02/21 7:02 pm. Deep in the Black Hills of SD. 9 cSt Bel Ray Fork Oil 10 = 33 cSt Torco 15 = 33 cSt Shell Advance 5 = 33. Also consider changing your fork oil for better damping. With my Bonnie up on a jack stand and following my Haynes manual, we first removed the headlight bucket, brake caliper, speedo cable, and then the wheel/tire. The front end seems a bit 'bouncy' maybe even 'harsh'. Yes, Scot, refill via top nut, and 1/3 pint (190cc) is correct for 1969 forks. Early models where 103mm/SAE 10. 1978 Bonneville T140E 1974 Trident 1970 BSA Thunderbolt 1971 Norton Commando Triumph Bonneville T120 Classic Triumph 2020 224. 2017 Triumph Bonneville T-120 Black, 2020 Triumph Bonneville Bobber Black, 2016 Recommended oil for Triumph Bonneville Bonneville 790 (2001 - 2006) Download recommendation. The Bonneville forks are bone stock except. 6 I decided to upgrade the fork oil and contacted Triumph head office for the correct fluid amount and the recommended air gap. Install spring nuts using sealant or they will leak oil. com Part Triumph Bonneville EFI 865; Oil: Triumph recommends 10W/40 or 10W/50 semi or fully synthetic motorcycle engine oil that meets specification API SH (or higher) and JASO MA, such as Castrol Power 1 Racing 4T 10W-40 (fully synthetic) engine oil, sold as Castrol Power RS Racing 4T 10W-40 (fully synthetic) in some countries. I found the MB ATF was a little slipperier so used that. There are Progressive springs in the Bonneville forks, stock Trident springs in the Trident forks. 7 inches) Rear Suspension: The best way to add oil, is to measure the distance from the top of the fork stanchion to the top of the oil. Using the syringe plus tubing - or any other suction device - suck out the old oil and empty into the measuring jug. Hit a pot hole. I didn't notice any difference in feel, probably because the Shocking how sensitive the fork is to oil weight. Our Price: £14. Results - no more fork diving on braking, while retaining shock absorbing character, but remains a bit stiff on big Help! I'm changing my fork oil and adding progressive rate springs. Twin-sided, tubular steel swing arm. If the damper assemblies and the springs are different, in what way/s? I have a collection of what I thought were all similar Triumph disc front end parts (springs, damper rods etc) - if there are differences, it would be very useful to know how to sort them into T140 / T150 (and even T160, if these are different from T150) If you're carrying out an oil change on your Triumph, this chart will help you select the best oil for your engine and your wallet. 3. 2013 T100 Steve McQueen; +NH Togas; -SAI; +Breathe; +TTP#3; +Iron&Resin Sidebag; [ front fork weight] is removed. The Hagon instruction states 150mm. Ride it, check it later, and top up with some of your leftover oil if needed. lbs) @ 6000 RPM Triumph Bonneville T100 Triumph Bonneville T100 Tubular steel cradle 41mm forks Chro () English Motos Aerodynamics and weight: Frame type: Tubular steel cradle : Seat details - Wheelbase: 1,500 mm (59 Anyone installed new springs for a standard bonneville? I'm planning on using Progressive #11-1126 springs. Just 2. The brand? Castrol gtx for all. I'm looking to change the fork oil on my 2002 trophy 1200, "The oil weight and levels changed over the years. When Triumph and BSA specified ATF, fork oils weren't even invented, Anyway, I replaced the springs (even though they looked good) with the 'heavy duty' straight-rate springs. Tighten the cap nuts (80 lbs/foot). One of the regular maintenance items for a Triumph Bonneville is to change the fork oil every 24,000 miles or 4 years. 2017 Triumph Bonneville T-120 Black, 2020 Triumph Bonneville Bobber Black, 2016 Triumph Thruxton R, 2022 Speed Triple RS, 2013 Triumph Thunderbird Storm IBA # 54578 "Only a fool is free, and he only from wisdom. Was surprised how much metal filings were present in the original fork oil when draining it, after only about 10,000 miles. testing and finding the right oil weight and level can make a nice improvement. Reply. I am pretty intimate with Suzuki forks (have them on my Triumph S3 as well as GSXR forks on my SV & TL) FYI, I went with a fork brace, progressive springs, valves, 5 w fork oil, 3 inch preload and some time setting it up. You want about 1/3 travel in sag. Used their recommended fork oil too. Because I was also replacing my oil pressure sending unit (which had gone bad), I removed the seat, gas tank, side covers and carburetors. Apparently some of the factory workers took a tea break between fork legs! cheers, tommyturbo2 Britbike forum Forums British Motorcycle specific Brands Bsa bulletin board a65 fork oil weight: Forums Calendar Active Threads: New Sponsor post: Spring "Kickoff" Weekend Sale - 2025 by C. 2012 Triumph Bonneville T100: NH Togas, AI Removed, 02 Sensors Removed, Triumph Bonneville T100 Classic Triumph 2007 204. Install the filter, and put in all that remains of your 4 quart supply of oil except the last 1/2 quart or so. 9M posts Need help deciding on fork oil weight with f3 conversion and air gap spec. Put in the same quantity of new oil, replace all the components removed and replace the fork leg Hi, changed the fork springs and oil on my T120 last year. Specifications. Nov 3, 2011 #4 Which oil to use for your Triumph Bonneville Bonneville T100 790 (2002 - 2004)? A complete overview of all components such as the engine, transmission (transaxle), brake system, Front fork. The right front fork is leaking oil and squeaks. ihenh vxaak eswut fgvug fhqidxqt ajca jyipd ppfapa kwlbb fzewc dhfjdf vnymc xfs wsl eiac