Progressive fork springs kit to fit Bonneville SE + Bonneville 2015 with 17 inch cast alloy wheels


TEC upgrade progressive fork springs kit with detailed instructions. Fits Triumph Bonneville SE all years and Bonneville 2015 models with 17″ cast alloy front wheel.

Huge improvement in travel comfort and handling over stock springs.  See our reviews to see how happy people are with the performance.

Provides reduced crashing over bumps and less dive in braking.

Straight replacement for the standard liner triumph fork springs no mods required.  Comes with necessary spacers and detailed instructions.Can also be used with our for top ride height adjusters and fork emulator damping control valves for ultimate ride and adjust ability

Highly Recommended with our rear shock upgrades for a total transformation of your bikes comfort and handling or we offer a no quibble full refund!

12 month warranty


Customer Reviews

Based on 27 reviews
progressive fork upgrade

standard bonneville 865 forks were far too firm, the tec progressive spring up grade made a massive difference at a very reasonable cost and easy to install.

Timothy Herrington
New fork internals

Big thanks to tec online video and easy to follow instructions made fitting and set up of new progressive springs and preloaded adjusters a dodle, ride home from work after fitment was smoother, steering quicker, great upgrade, price great, product quality, 5*

Mark de Bretton Gordon
Fork uphrafe

Very easy to fit I noticed an improvement over the stock springs. The next step is to experiment with preload adjustments to fine tune the set up.

Next on the list is to fit fork valve emulators to rally fine tune the front end.

Very pleased with the service Tec provides... keep it up

Tony McManus
Great usual

Just fitted the Progressive fork springs & pre-load adjuster caps to my 2012 Triumph Bonneville SE, and the handling is much improved over the stock springs. No issues fitting, but I found the easiest way is to pad the tank and lay the handlebars on the padding as its easier to use the ratchet to tighten down the caps. Great Job. Well pleased now for the rear shocks....

William Raper

Easy to fit and made a difference.