Suspension

Honda Shock Springs

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Honda Shock Springs

 

When installing an extended swingarm on your bike, you drastically alter the leverage ratio and load on your rear shock. In order to maintain the correct suspension action, a new spring is mandatory. At Trac we have a complete selection of springs for almost all sportbikes. For street bikes, a stiffer spring is almost always necessary to compensate for the longer wheelbase of an extended arm, For the serious drag racer however, sometimes a softer spring will allow for the maximum performance. Below is spring selection chart to illustrate the rates recommended.

 

CBR-1000RR 04-16 (12.0 kg STOCK)

SWINGARM EXTENSION DRAG RACE DRAG RACE STREET STREET
LENGTH

175 lbs Rider

250 lbs Rider

175 lbs Rider

250 lbs Rider

2 INCH 10.7kg 11.6kg STOCK 13.4kg
4 INCH 10.7kg 11.6kg 12.5kg 14.3kg
6 INCH 11.6kg STOCK 13.4kg 15.2kg
8 INCH STOCK STOCK 14.3kg 16.1kg
10 INCH 12.5kg 13.4kg 15.2kg 16.1kg
12 INCH 13.4kg 14.3kg 16.1kg 17.9kg
14 INCH 13.4kg 14.3kg 17.9kg 19.6kg
16 INCH 14.3kg 15.2kg 17.9kg 19.6kg
  • Revalving recommended with all spring changes.
  • Revalving strongly recommended with all red numbers
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