Just got my primary and secondary back from JBS Performance. They did a great job machining the sheaves to get a 15% reduction. After a short test in my parking lot I can definitely feel a difference. The gearing feels lower than stock with my 35" XG's. I'm heading out this weekend to do some riding, won't be much rock crawling, but I should get a good idea how it runs now.
They don't run the primary spring with this setup. After this machining, the belt rides up higher on the secondary and lower in the primary.
They don't run the primary spring with this setup. After this machining, the belt rides up higher on the secondary and lower in the primary.
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