Progressive fork springs for Triumph Watercooled Hinckley Bonneville T100 (2016 -2021)

(28 customer reviews)

£70.00

This will totally transform the ride and comfort of your bike!

They are designed to fit all WATER COOLED models (2016 -2021) of Hinckley Bonneville 900cc T100.  Fitting these progressive springs will provide:

NOTE in 2021 model year the T100 started using a damping cartridge in the right side fork only. to check if your model has this you can undo the right side cap and if it has a cartridge fitted you will see the damper rod attached to the fork cap. These t100 models use different springs and these are in a different listing.

  • More Travel
  • Less dive under braking
  • Less crashing over potholes
  • Straight replacement for the standard liner triumph fork springs no mods required.
  • Recommended with our rear shock upgrades for a total transformation of your bikes comfort and handling or we offer a no quibble full refund!
  • Huge improvement in travel comfort and handling over stock springs with reduced crashing over bumps and less dive in braking.
  • Easy to fit with all instructions provided, these are a direct replacement for the original springs.
  •  No modifications needed.

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

Quantity:
Rating
4.2 out of 5
Based on 28 Reviews
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4
Graham
August 8, 2025

Better than anticipated

Just fitted the progressive springs to my T100. Very bumpy and poor road surfaces where I live and I immediately notice a big difference in handling Banging and crashing on uneven surfaces almost eliminated and annoying vibrations from rough road surface pretty much gone. A much smoother and more comfortable ride. Definitely worth fitting. Fitting process takes about 10mins a fork leg and is a simple swop. Only issue I had was by part no the springs were for an air-cooled model and mine is water cooled. Tec assured me that they were correct and they were.

Julian W.
May 2, 2025

Improve fork action

The parts and included instructions all good quality and the YouTube video also helpful. I am glad I have a good pillar drill and drill bits as I would expect it to be testing using a hand held drill. I has previously reduced the preload on the standard springs by 12mm and achieved significant improvement. The progressive springs were fitted with the original preload and for my sub 60kg weight I’m noticing less compliance. I’m going to trial the original springs again with 12mm less preload.

Brian D.
September 30, 2024

triumph fork springs

i am really happy with product, services and delivery, for me the progressive fork springs have transformed the ride and handling of the bike, great investment for me i would recommend them to all riders of the same bike.

Terence R.
May 23, 2024

fork springs

must have item for early water cooled bonnevilles.

Paul B.
September 9, 2023

Big improvement

A noticeable difference after fitting these springs. They soak up the bumps & ripples at lower speeds making for a smoother ride on rough country lanes & urban streets with patches & potholes. Really easy to install on my 2017 model & quick delivery, very pleased with them.

Antony M.
June 23, 2023

New front springs & preloaders Bonneville T100 2017

Prompt and very fairly priced delivery on these parts. Fitting very simple and straightforward, simply watched the Tec UTube vid which is great. Bike is much smoother and I can play around with my preload as necessary. Excellent!!👍👍👍

John T.
August 12, 2022

Progressive fork springs and preload adjusters - 2018 Bonneville T100

The poor roads in Essex where I live expose the weakness in the Triumph’s forks making it unpleasant to ride and causing a lot of bodily wear and tear! I hoped that progressive springs would improve matters and decided to invest in the preload adjusters at the same time. I was not disappointed. The bike is now feels more planted on the road and the ride quality has improved so that there is far less crashing over bumps. Also there is reduced fork dive on braking and the the steering seems to have sharpened up. I’m still experimenting writh the preload settings but I’m sure I’ll soon find the sweet spot. These springs for T100 are the same length as the originals so the assembly process is easy. There are no instructions as such and you are referred to YouTube videos. Some videos are a little misleading and gloss over some aspects of the job, but provided you are careful and methodical you should have no problem. It is very important however to slacken the top yoke clamp bolts to facilitate the removal of the fork top nuts as they are soft alloy with fine threads so easily damaged otherwise. Once you have refitted the top nuts or the new preload adjusters instead, you must remember to tighten the clamp bolts again. The job took me under an hour but many people I’m sure can do it in far less time. I’m very satisfied with the result which was well worth the money. Well done again Tec.

Tim B.
May 28, 2022

Bonnie fork springs

Not fitted yet but very good service from Tec. Springs arrived in a couple of days and look good quality, would use Tec again.

Antony F.
May 20, 2022

Fork springs

Arrived in good time,easy to install took 15 minutes not road tested them yet but I think they will be fine👍

peter C.
April 16, 2022

Progressive front springs

Springs arrived quickly and looked great quality, equal lengths...believe me this is not always the case with other manufacturers. Springs fitted and I can certainly feel an improvement. Well worth the money.

Darin G.
March 7, 2022

Quick delivery and easy to install

Had the parts shipped to NZ and they arrived within a week. The installation was a breeze and I am really happy with the result.

Neil C.
February 23, 2022

Genuine & Reliable

Very upfront and genuine company. No problems, good quality products at the right price. I have already purchased rear shocks which work exceptionally well so now fitted front springs to complete the improvements.

KJL
December 9, 2021

Progressive Fork Springs

Bought these to fit over the winter period so I can not yet comment on the results of the installation.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.

roger C.
November 17, 2021

make sure the front wheel is off the ground

fitted the new springs successfully after realising it helps if the front wheel is right off the ground. very sttaightforward after that. Some oil loss from drips off the coil and spacer is a worry, but it cant be more than a 1cc. need to test ride now.

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!!

Graeme P.
November 2, 2021

Progressive springs

Quick delivery, yes does make a difference to the front end, seems a bit more compliant, and control.may need the preload adjusters? Let's see with more miles.

Kevin D.
October 25, 2021

Easiest mod ever.

These arrived very quickly along with other products ordered at same time. Straight forward swap for original springs. Old ones out new ones in, took less than 1hour. Would advise loosening the top bolts on the fork trees before trying to loosen the fork caps as they can sometimes clamp onto the fork caps. Found the forks were a lot more progressive and responded well to mid corner bumps. Once I have set up the rear suspension correctly I may well invest in a pair of preload adjusters if I think it needs it. Great value for money, and gave an immediate improvement.

Martin B.
April 30, 2021

Big improvement over the standard springs excellent value for money

Big improvement over the standard springs great value for the money

Clifford B.
April 23, 2021

T100 progressive fork springs

Fitted springs with pre load adjusters nice and simple to fit and feels a lot better on the front end now , a slight misunderstanding on the order but rectified within two days

frederick O.
January 22, 2021

Rear shocks & Front springs

Just done upgrade for my Bonneville T100 2018. Put TecBike progressive front springs and Adjusters also rear shocks. Had couple of enquiries and got reply within 1 hour. Great service, can't fault.I've done upgrade but can't try due to covid19 and weather. Bought loads of pats from TecBike parts never been disappointed. Thanks again TecBike parts.

Jamie N.
October 23, 2020

Does what it says baby!

Nick D.
October 31, 2019

Stiffened up front end nicely

Edward H.
February 24, 2019

Could feel the difference immediately. Gives lots more confidence. Very happy

Daniel A.
November 15, 2017

Progresive spring are fitted on my t100 : i fell a big difference between and after.

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