06/04/2007 Culture

Important HiFi Rear Suspension Notice - Sizes XL and L

Dear Fisher HiFi owners,

We are writing to remind you of the importance of proper suspension adjustment. This is particularly important for bicycles equipped with rear suspension. If you are riding a size X-Large (XL) or Large (L) Fisher HiFi, please read this letter carefully.

We have had a few reports of frame damage that resulted from an under-inflated rear shock combined with riding conditions that for the HiFi are extreme or unusual. In these cases a hard impact combined with an under-inflated rear shock caused the suspension to "bottom-out." When the HiFi experiences bottom-out, the rear suspension system can be damaged and forced past its normal range of motion. When this occurs, the rear wheel can contact the back of the seat tube or frame, which could cause damage or loss of control.

This has principally been seen in the size XL and L HiFi. It can be avoided with proper shock inflation. However, we have developed a new suspension link for the HiFi (see illustration), which prevents shock bottom-out. You probably do not need this new link if your are not riding a size XL or L, but we are making it available to all HiFi owners, no matter the size of your bicycle.

Please focus on these two things:
• Keep the rear shock properly inflated
• Replace the suspension link for free

Inflate the rear shock
As with any full suspension design, it is very important that you adjust (inflate) the rear shock correctly before every ride. Every HiFi is shipped with a shock pump; make sure to use it -- your HiFi will ride better if you do. As an easy rule of thumb, inflate the rear shock to a minimum of 75% of your weight in pounds.

There are two other adjustment methods: the sag method and the HiFi inflation chart. If you use the sag method, you still need to use the 75% rule. The chart below shows our recommendation. Select your body weight from the top row and our suggested shock inflation from the corresponding value shown below your weight.



Replace the suspension link
The new HiFi link prevents suspension bottom-out, and we will put one on your bike for free. Simply contact your Fisher dealer for a new link.

Remember: Shock bottom-out can damage any suspension system -- Keep that rear shock inflated!

Thank you for buying a HiFi
We hope you agree that you are riding the best trail bike on the market. Thank you for buying a Fisher. If you have any questions or want a new link, please visit the Fisher dealer where you bought your bike.