It’s enough, not more than enough though. Chainstay protectors are not used as often anymore, nor do the manufacturers of the crank or the frame design around them. I’d stick to a ride wrap style one if you aren’t looking to change the cranks.
nateknutson on
This is a pretty good picture of an edge case. It’s probably right around the 3mm most sources would consider to be a hard minimum. One of the considerations here is that the style of flat chainstay yoke on this frame will tend to create much more lateral rear end flex than a tubular section. Whether it will be enough to hit is impossible to predict.
Sometimes cranks wind up a little asymmetrical on Q even though they shouldn’t, and/or frames wind up asymmetrical on crank/CS clearance even though they shouldn’t. If either of these are the case now, you could look at whether you could buy any more clearance here and not create problems elsewhere by shuffling BB spacers.
If it’s a steel bike, you could consider having a framebuilder add a bit of dimpling.
3 Comments
I’d want at least 4 – 5 mm of gap
It’s enough, not more than enough though. Chainstay protectors are not used as often anymore, nor do the manufacturers of the crank or the frame design around them. I’d stick to a ride wrap style one if you aren’t looking to change the cranks.
This is a pretty good picture of an edge case. It’s probably right around the 3mm most sources would consider to be a hard minimum. One of the considerations here is that the style of flat chainstay yoke on this frame will tend to create much more lateral rear end flex than a tubular section. Whether it will be enough to hit is impossible to predict.
Sometimes cranks wind up a little asymmetrical on Q even though they shouldn’t, and/or frames wind up asymmetrical on crank/CS clearance even though they shouldn’t. If either of these are the case now, you could look at whether you could buy any more clearance here and not create problems elsewhere by shuffling BB spacers.
If it’s a steel bike, you could consider having a framebuilder add a bit of dimpling.