Originally Posted by
jpdkodiak
iv recently installed a jbs sheave kit, it came with a purple spring, 16g od weights and obviously the sheave, i really like the power i got in the low end but i lost like 15 kph, but it says on the site that it will give it more top end, and ive read tat some people are hitting 70mph with their jbs setup, i dont go that fast often but id like to know what the problem is, ive checked the weights , none of my weights were out of place and i took out a bounch of grease while i was there and i still have the same problem.