Rear Sprocket Change - Problem with Brake Caliper
I changed out my front and rear sprocket and chain this weekend and came across a slight design flaw/manufacturing issue and was curious if anyone else had the same problem.
Here's the deal:
I ordered a 114 link chain to go with my new 44T rear sprocket, but after putting everything on,taking a look at the tension, and doing some careful measuring with the calipers, I ended up taking a link out of the chain. I was already past the halfway adjustment mark for the rear tire and was worried about how much adjustment I'd need as the chain stretched.
Anyway, my measurements were all done with the brake caliper off. I calculated that the 113 link would have about the right tension with the adjusting screws all the way in. As reassembly proceeded, I noticed that I could not get the rear axle to move all the way forward on the right side, despite having the screws all the way in. The block (on the inner right side of the swingarm) that restricts angular motion of the brake caliper seems to either have been welded too close to the rear axle and prevents the full range of motion for the rear tire position adjustment on that side. Basically the brake caliper channel hits that block and the caliper cannot move any farther forward, preventing the rear axle from moving forward as well.
As I was already at the proper chain tension on the left side and couldn't get the marks to match as is, I ended up using an angle grinder to take a small chunk off the block that the brake caliper channel slides onto. Everything has full motion now, as it should, based on the position marks on the swingarm.
What I'm wondering is, has anyone else had this problem? Was this a flaw for the '08 bikes or perhaps just the lot that mine was made in? Or maybe just mine?
I did some searching, but couldn't seem to find any other mention of a similar problem in the forum, so I apologize if this is a repeat!
Let me know if anything doesn't make sense. I should have taken pictures, but was covered in grease.
Put the rubber on the road and leave it all behind.