I looking for a 45t rear spkt for my 630.Right now I'm running 15/48 and would like to relax 6th gear a bit.Would try a well used one just to see if still am happy with 1st gear. These spkts would fit any 2000 and up husky,don't have to be 630 specific.
I have found good new and used units on Ebay at good prices and quality. I think what you will find is a choice of 42, 44 or 46. I have not seen any 45's. Paw Paw
I accidentally bought a 45t Renthal gold rear sprocket for my 08 SM610s. I was going to put it on ebay or something.
Since new went to a 14 on the front with stock 42. At 8,000 miles this weekend, put on a new 14 front, Chain and went to a 44 rear = 3.14. Got all the bits from Halls. Assume the rear is a rather non standard, as Rocky Mountain ATV, does not even list the 630 for shopping, but has parts for my 510 and 511. You can pull up your parts list at halls on line and get the specific part number for the rears. Do 630 sprockets fit other bikes, ie are there generics? Stock I believe was 15/42 = 2.8 your 15/45 of course will put you right in at 3:1, I have hears some say avoid a direct number such as 3, but don't think it makes a difffernenc in regard to chain wear.
