[{"id":287259426985,"handle":"dealer20","updated_at":"2024-10-10T21:35:01-07:00","published_at":"2022-07-29T17:24:24-07:00","sort_order":"best-selling","template_suffix":"","published_scope":"web","title":"Dealer20","body_html":""},{"id":9086626,"handle":"featured-products","updated_at":"2024-10-04T15:00:00-07:00","published_at":"2013-02-03T19:23:14-08:00","sort_order":"manual","template_suffix":null,"published_scope":"web","title":"Featured Products","body_html":""},{"id":13727937,"handle":"shock-springs","updated_at":"2024-10-04T15:00:00-07:00","published_at":"2013-12-07T17:58:51-08:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"Shock Springs","body_html":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eSPORTBIKE SHOCK SPRINGS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWhen 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.\u003c\/p\u003e"},{"id":6131352,"handle":"suspension","updated_at":"2024-10-04T15:00:00-07:00","published_at":"2012-01-02T12:35:47-08:00","sort_order":"manual","template_suffix":"","published_scope":"web","title":"Suspension","body_html":"\u003ch1\u003e\u003cem\u003e\u003cstrong\u003eSPORTBIKE SUSPENSION PRODUCTS\u003c\/strong\u003e\u003c\/em\u003e\u003c\/h1\u003e","image":{"created_at":"2014-04-26T19:54:30-07:00","alt":null,"width":1000,"height":600,"src":"\/\/tracdynamics.com\/cdn\/shop\/collections\/MOBILIA_ICON_CITY_SUSPENSION_3.jpeg?v=1398567270"}}]
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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