River Rat Posted February 4, 2015 Posted February 4, 2015 I am thinking of converting my Canondale 26er to a 650b. There seems to be plenty of clearance on the fork but not so much on the rear triangle. Anyone know what radius I need, including tires of course. Also anything else I need to look out for. Thx
RABUBI Posted February 4, 2015 Posted February 4, 2015 https://community.bikehub.co.za/topic/147281-considerations-for-converting-a-26-ds-to-275/
popcorn_skollie Posted February 4, 2015 Posted February 4, 2015 all threads that came before this one will tell you the same thing.The best way to do it is to physically put the wheel on with the tyre to check
River Rat Posted February 4, 2015 Author Posted February 4, 2015 Thanks guys I was hoping to do a first pass by simple calculation before I hunt down a 27.5 wheel and tire to test. I guess I'm going to have to assume a 20mm minimum clearance and if it passes go to the actual wheel & tire test.
shaper Posted February 4, 2015 Posted February 4, 2015 If you don't have a 27.5 wheel, take the frame to your LBS and ask them to fit one of the wheels to see... easiest way and no mess up with number crunching of wheel diameters, tyre volumes etc
Shebeen Posted February 4, 2015 Posted February 4, 2015 I normally have to speak to my wife first before upgrading any bike stuff costing more than a bunch of roses. But I reckon it's easier to ask for forgiveness than permission. Just do it..
MrJacques Posted February 4, 2015 Posted February 4, 2015 I'd rather put wider 26" tyres on. Usually when squeezing 27.5" tyres into a 26" frame there is little clearance left and you need to run skinny tyres. Personal preference though. The actual difference between 26 and 27.5 (which 650b isn't really, it's closer to 27". 650a is closer to 27.5) isn't that big anyways. http://www.chrisberkley.com/wp-content/uploads/2014/06/Bicycle-Wheel-Size-Illustration1.gif
River Rat Posted February 4, 2015 Author Posted February 4, 2015 I'd rather put wider 26" tyres on. Usually when squeezing 27.5" tyres into a 26" frame there is little clearance left and you need to run skinny tyres. Personal preference though. The actual difference between 26 and 27.5 (which 650b isn't really, it's closer to 27". 650a is closer to 27.5) isn't that big anyways. http://www.chrisberkley.com/wp-content/uploads/2014/06/Bicycle-Wheel-Size-Illustration1.gifMmm, this makes it only 13mm extra. Now I see why a physical test is crucial. Thanks
Recommended Posts
Archived
This topic is now archived and is closed to further replies.