Official YSS Research & Development Centre & Supplier

Here at Firefox we sell & rebuild almost all shock absorbers & suspension components including YSS, Ohlins, K-Tech, Hagon Progressive and Nitron. All of the shock absorbers we sell come with a 2 year guarantee and are fully rebuildable by us. The shock absorbers come in a variety of types and specifications and as an Official YSS Research and Development Centre we supply the largest range of shocks in the UK, all available to order with fast delivery.

YSS Shocks are of a much higher quality than stock shock absorbers as they are generally built to a lower budget, this is why a new shock is an essential upgrade for anyone wishing for that smoother and more comfortable ride at an affordable price.

We offer a large range of YSS shock absorbers including

  • Rear Mono Shock Absorbers, including Hydraulic Preload
  • Front Mono Shock Absorbers
  • Twin Shock Absorbers (Ecoline, Emulsion & Piggyback versions)
  • Plus many more!

We supply, fit or simply just rebuild shock absorbers for a number of motorcycle manufacturers, including BMW, Ducati, Honda, Yamaha, Triumph, Suzuki, Kawasaki plus many more!. We can also advise on what shock absorbers would be best and even offer to set up your YSS or standard shock absorber so it is optimized for your riding style/weight.

 We also offer other fantastic services including:

  • BMW ESA shock rebuild service with just a 2 day turn-around!
  • Fork/Shock Rebuild & Respring to rider weight
  • Ohlins Replica Fork Service
  • Powder Coating
  • Suspension Set-up

Our Services

Below you can see some of the services we offer. For further details just click ‘Read More‘ Or alternatively you can email us:


Ohlins forks looking tired and worn? We can Re Anodise them to like new!

BMW ESA Shock Servicing

BMW ESA Shock Leaking? No Damping? We can fix it with a year warranty!

Cylinder Replating

Cylinder has score marks all down it? We can Re Nikasil your cylinder and repair almost all damage!

Cylinder Rebore / Resleeve

Boring out to a higher CC or need your scored cylinder Resleeving? Contact us for more info.

Fork Servicing

Front suspension gone soft? Forks lost all rebound? We can service them and supply a year warranty!

Shock Absorber Servicing

Motorcycle shock absorber servicing done right with a year warranty!

BMW ESA (Electronic Suspension Adjustment) Explained

BMW ESA is a must for any true riders out there. No more wasting hours of your time messing with suspension adjustment tools or even the constant twisting of the preload dial to get it just right, it’s all there in a single button.

This optional feature basically allows the rider to adapt the chassis of the motorcycle ideally to his riding style, the amount of weight, or even the weather conditions on that day. The button located on the left handlebar gives you the ability to adjust the suspension and damping characteristics of the front and rear suspension.

The damping adjustments (Sport, Normal and Comfort) can be made whilst riding meaning you can change the style immediately when travelling on different surfaces. Whereas the shock preload adjustments have to made whilst stationary. This simple one-click button allows even the less experience riders have the most comfortable ride by taking away all the guess work in their suspension set-up.

This means you’re ready to adapt your suspension no matter what the given riding scenario is. The following BMW bikes currently come with the ESA (Electronic Suspension Adjustment) feature.

F800GS, K1200GT, K1200LT, K1200RS, R80GS, R850GS, R850R, R850RT, R100GS, R1100GS, R1100R, R1100RS, R1100RT, R1100S, R1150GS, R1150GS ADVENTURE, R1150R, R1150R ROCKSTAR, R1200GS, R1200GS ADVENTURE, R1200ST, S1000R K10, S1000XR K1

Ohlins “DES” Ducati Electronic Suspension Servicing

DES or Ducati Electronic Suspension was developed in conjunction with Ohlins and is usually found on the Ducati Panigale 1199 & Ducati DS1000 Multistrada 1200 (The Ohlins code for these forks is FG8650  FG8603).

Over the years we have seen many customers complaining about a loud “clicking noise” coming from their “brand new” Multistrada forks with no indication as to what is causing the it. 

Here at Firefox after close inspection of a set of FG8650 Ohlins forks we have found a fault on the valves, this can be fixed be upgrading part of the valve and can be done along side our rebuild service with only a minimum extra charge. 

We advise customer not to try dissembling these particular forks as they are not the run of the mill items.

Prices for these forks servicing are:

Full service with genuine parts £199.00

– Full service with genuine parts and valve repair (eliminates clicking) £249.00

– DPD UK Next Day Post £10.50

For more information please contact us on 01535 606200