Mark Whitehead

4 stars

Posted on 29th, February 2012 about XCR BB Mount Chainguide

Solidly-built; BB spacers give good adjustability for chain-line; guide can be loosened to slide up and down to suit ring size. Bit of a faff to set up, but then all BB-mounted guides are. I've used this 38T and 32T single-ring setup and on balance it works brilliantly, and at this price it's a bargain. 2 things to note though: 1) It looks like it's designed for DH single-ring, so using a thinner-webbed XC ring means the spacing can't get the cage close enough to the spider. So you get a bit of rubbing in higher gears. But all you need is a couple of washers on the cage mounting bolt and it works just fine. 2) This was the only Superstar chain device when I bought it- consider your bike configuration and what is most suitable as now for my XC full-susser I'd probably go for the XCR ST chain keeper instead. (Admin- I've already reviewed this item but wanted to add to it so feel free to remove my older review)