Fork top pre load adjusters for Triumph 41mm forks

(67 customer reviews)

£79.99

TEC CNC Fork top pre load adjusters- This brand new pair of TEC fork top pre load / ride height adjusters will fit all years and models of Air cooled and Water-cooled Triumph Hinckley Bonneville, 1200 Bobber, T100, Street Twin, Street Scrambler, America, Speedmaster, Scrambler and 900cc Thruxton.

Will not fit 1200cc- T120 and Thruxton R

These adjusters are made by us and are top quality anodised alloy.

Allows fine tuning of the front forks on Bonneville, Scrambler, America, Speedmaster, Street twin, Street Scrambler, T100 and SE models on both air and water cooled models. Similar to the type fitted to the Thruxton models.

IMPORTANT-

Can be used with our progressive fork springs and fork emulator damping adjusters to give a vastly improved front end set up that is fully adjustable for damping and pre-load /ride height.

The kit features:-

  • A pair of TEC Triumph 41mm fork top pre load adjusters
  • Full technical and warranty back up from a long established UK family company.
  • Fitting video (please note we have updated the style since this video):

See the product reviews of TEC products on our site to see how much difference they made to people’s bikes!

Quantity:
Rating
3.6 out of 5
Based on 67 Reviews
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G.M
September 20, 2025

Adjustable suspension

Recently purchased a 2001 Speedmaster the front suspension wasn’t bad but dived a bit under braking.Consequently I went for the easy option of fitting fork top preload adjusters.The job took around 30min(most time spent finding spanner’s).Results pretty impressive for a quick fix ,still requires a little fine tuning 👍 thank you once again brilliant service and product

Dave
February 20, 2025

Great service

First class service from Tec parts. Parts arrived very quickly . I must admit that although the parts have been fitted I've been unable to try yet. Very well made and easy too fit. I am sure they will improve my front end setting greatly.

Michelle M.
July 6, 2024

T100 fork adjustment

Delivered promptly to Australia. Fitted preload adjusters with progressive fork springs. Being able to add preload after fitting made the install process easier and the adjustment range let me tune the forks to match the rear suspension. Nice outcome

Ian C.
June 18, 2024

Quality Product

I am extremely happy with the fork top pre load adjusters. Perfect Fit good quality and finish. Delivery was quick and efficient as I live in Australia. Will buy more stuff from Tec. Ian

Anthony W.
May 13, 2024

Big difference

Used with new springs from TEC. Brilliant device at a very reasonable rice. Well made and had no problems fitting at all.

David A.
April 16, 2024

Very useful to get pre-load just right.

Fitted to my 2017 Triumph Street Twin at the same time as fork emulators. Now able to tweak the pre-load easily which has allowed me to get rid of the tendency of the bike to fall into slow corners.

David W.
February 2, 2024

Fork preload adjusters

Appear to be very nicely machined and finished Easy fit. I lined my open ended spanner with masking tape to guard against damaging the finish

Nicholas B.
December 4, 2023

Bonnie bits pt2

Prompt delivery and well packed. The item looks good although I will be fitting over the upcoming festive break. Thank you.

David W.
October 7, 2023

Fork pre load adjusters

Very helpful and quick service

william D.
August 31, 2023

fork top preload adjusters

arrived real quick very nicley made easy to fit 40 mins max smoothed out the front end realy well aready had progressive springs thank you fitted to 2016 t100

KEITH A.
August 17, 2023

Quality

Hi just fitted the preload fork adjusters had to cut my fork spacers a bit already have progressive springs and emulators fitted this is the final touch to the forks have not had time to ride and set up if your thinking about fitting this quality item do it you will not be disappointed.

chris P.
July 28, 2023

Look the business

Easyish to fit if you know what you are doing and look incridibly trick, cheap enough too so happy day's

Review ImageReview Image
Alastair H.
September 16, 2022

Bonneville forks upgrade

Bought new springs, valves and adjusters for my T100 as the original front suspension is rubbish. Haven't had time to fit them yet but the parts look to be really good quality and the backup and service from TEC was first class as always.

Timothy H.
August 23, 2022

New fork internals

Purchased the progressive springs and preloaded adjusters, clear instructions with kit, also watched online video, easy job for anybody with mechanical experience, the new internals smooth out the ride and improve sterring when set up, I'm running with just a little preloaded, worth the small investment, waiting now for rear shocks to come in stock 5*

John T.
August 18, 2022

Pre load adjusters for 2018 T100

Fitted the pre load adjusters at the same time as the progressive springs. A few small burrs on a couple of threads had to be attended to before fitting but otherwise good quality. Care is required when tightening in fork legs. I used masking tape on open ended spanner jaws to prevent damage. Being black you hardly notice the adjusters once handlebars are back in place. So far I’ve found that little pre load is actually needed as the new springs seem to make the firmness of the ride just about right for me and are huge improvement over the original springs (see my separate review of the springs). I ride solo without luggage. I’ve made several purchases from Tec and their service is great and products good quality considering the reasonable prices.

Mark D.
August 12, 2022

Pre loaders

Great product... high quality.. very easy to fit. Allows adjustments to the fork spring load to tune it to the road surface encountered. The roads where I live go from race track quality to very poor all within a 10 mile ride, so setting up the suspension is always going to be a compromise. This kit gives you that little extra to greatly improve set up. Highly recommended.

David G.
July 9, 2022

Ac fork tops

Quick delivery loverly machineing,quality product as expected

Andy M.
July 1, 2022

Pre load adjusters, emulators and progressive springs

These were delivered promptly, straight forward to fit and made a significant difference to rider comfort and the ride in general. I still think I need to find the time to set up the sag correctly to get the best out of them but a definite improvement already, particularly on our our roads in their awful conditions. As an aside when you remove a fork top nut you brace your self against the tension of the large spring beneath. On the original Triumph springs, (LOL) it's not worth bothering, they are so wimpy.

Rudolf K.
April 13, 2022

Alles wie gewünscht.Preis-Leistung top 👍

KJL
December 9, 2021

Fork Top Pre Load Adjusters Bonneville

Bought these to fit along with progressive fork springs over the winter period so I can not yet comment on the results of the installation. The pre load adjusters are good quality and well finished. I have used TEC suspension products on a previously owned Bonneville and I found the performance and quality of the items to be ideal. I am confident to repeat the process using TEC products. A very good company to deal with.

Santino S.
November 4, 2021

Very Huge improvement on handling and braking

Very Huge improvement on handling and braking Fitted these valves from a specialist of suspensions and the bike is responding perfectly no more issues and lack of confidence that you can't trust to the motorbike on going very cautious on braking and bending now is a proper bike my forks are fully Tec upgraded with progressive springs, valves and adjustable endcap and rear suspensions worth the money guaranteed!!

John F.
October 23, 2021

Pre load adjusters.

Fitted to complement the progressive fork springs, look good and do the job. Very fast delivery, good service.

Martin G.
July 31, 2021

Threads needed cleaning slightly rough edges But other than that good product and price Many thanks

Paul M.
July 20, 2021

Havent fitted them yet

Just got out of hospital so havent fitted them yet ,not alowed to lift any any thing yet ,but decided to buy from tec rather than take a risk and buy cheper elswhere (china ebay etc .)although maybe the same thing .look the same anyway.but you know what your getting from tec good quality well made and they are in uk .yep usual tec the best. Capt Triumph.

Jeff C.
June 7, 2021

Good upgrade.

You're only going to make the standard forks better. I installed these with Hagon progressive springs & TEC Fork emulators and adaptors for Triumph 41mm forks. 2011 T100 much better now.

cliff G.
May 11, 2021

41mm pre load adjusters - used on Bonneville Speedmaster 1200

Easy to install - lift the front to unload the fork springs - they're ally so you'll need to protect them with decorators tape and use a single hex socket. I'm now in the tweaking stage searching for that "just right" setting for feel rather than setting sag. Currently set to 8mm extra preload with a 91Kg rider and front end seems much better. Using standard fork springs as Technical don't do progressives for the Speedmaster, only the Bobber.

Clifford B.
April 20, 2021

Fork pre load adjuster’s

Easy to fit using standard springs and tube spacers , just trimmed it hem down by 5mm as suggested and they work a treat time will tell over longer journeys, when fitting do not over tighten and put some cloth or tissue under socket as not to mark the finish .

Mark M.
March 6, 2021

Fork preload adjuster

Nice simple product to fit. Got marked/scraped easily although putting tape around nut.

frederick O.
January 25, 2021

Fork top pre load adjusters

Arrived within a couple of days.Good quality easy to fit also changed front springs Haven't tested yet due to weather and lockdown.

Ian B.
December 30, 2020

Excellent service and response, looking forward to fitting the new springs and adjusters to the bike. Looks like a quality product, had them before on the other Bonnie so know they'll make all the difference.

Raymond
December 11, 2020

Front springs

Great product , fast delivery

RANDOLPH M.
October 27, 2020

great communication, good delivery under the global problems

RANDOLPH M.
October 27, 2020

great communication, good delivery under the global problems

Steven M.
October 23, 2020
Peter P.
September 28, 2020

Look top quality!Unfortunately not been able to fit due to unknown previous upgrade!

Peter P.
September 28, 2020

Look top quality!Unfortunately not been able to fit due to unknown previous upgrade!

John G.
June 11, 2020

very good item and fitted well and works well

John G.
June 11, 2020

very good item and fitted well and works well

Vaclav P.
April 1, 2020
Kevin R.
April 1, 2020

Incredibly well made, this preload adjusters work perfectly with Tec's progressive fork springs in my 2013 Truimph Bonneville. They really helped me make the front end less hard and harsh going over bumps. My ride is now super smooth that I barely notice any bumps of potholes on the uneven streets of London. Delivery was super fast too. All-in-all, a great product at a great price. Would highly recommend them for anyone wanting to have preload adjust on their front forks.

Kevin R.
April 1, 2020

Incredibly well made, this preload adjusters work perfectly with Tec's progressive fork springs in my 2013 Truimph Bonneville. They really helped me make the front end less hard and harsh going over bumps. My ride is now super smooth that I barely notice any bumps of potholes on the uneven streets of London.Delivery was super fast too. All-in-all, a great product at a great price. Would highly recommend them for anyone wanting to have preload adjust on their front forks.

Jamie C.
January 31, 2020

Great quality product, easy to install with the TEC progressive springs as well. Has given me an extra 20mm travel/height so no more scrapping on the Bobber. Highly recommend for the heavier riders like myself. Cheers.

Jamie C.
January 31, 2020

Great quality product, easy to install with the TEC progressive springs as well. Has given me an extra 20mm travel/height so no more scrapping on the Bobber. Highly recommend for the heavier riders like myself. Cheers.

Dave J.
January 31, 2020

Nice quality, does exactly what is required

Dave J.
January 31, 2020

Nice quality, does exactly what is required

craig P.
January 24, 2020

Great reviews, as of yet I haven't fitted it yet, but looking forward to that..

craig P.
January 24, 2020

Great reviews, as of yet I haven't fitted it yet, but looking forward to that..

L. P.
April 12, 2019

Brilliant they work great with Cnc progesive fork springs

L. P.
April 12, 2019

Brilliant they work great with Cnc progesive fork springs

Florin N.
April 24, 2018

Parts arrived perfectly. The product is well made and serves well its function. It completely changed the behavior of my Triumph. Before, the front end was all over the place, but now I feel confident knowing that throwing my bike in a corner I have complete control. Looking forward to other parts from TEC.

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