Hi everyone
I have an older bike with Mavic CXP23 rims that currently has 23mm tyres on (700x23c / 622-23).
I would like to switch ti larger tyres and was wondering if it will work and how I can figure it out before I order them?
The Bike has an older Shimano 105 setup from the early 2000s I guess? I took some pictures for reference..
Cheers!
by Sure-Blacksmith42
6 Comments
25? Probably. 28? Might be cutting it really close. Especially if you plan on riding in all weather and you’ll drag wet dirt on your tire, wearing out the fork’s crown.
Best would be to take an allen key set and see what size you can fit between the tyre and the frame. Also, don’t forget that the size scales laterally as well, so measure that, too.
28 yes or no but there is room for a 25
Front: 25mm in front should be fine. Dunno about 28mm.
Rear: No clue. You don’t have any clear pictures of the chainstay or seatstay clearance areas.
Finally, actual tire measurements aren’t standardized. Two different model 25 mm tires I have from Contintental have are 4mm width difference on the same rim (25mm vs 29mm). Also, the same time will be wider on a a wider rim.
Chainstay will be the decider. Fork looks like it might have room for 25s depending on the tire, but your rear measurements will ultimately decide if it’s possible or not
Even if 28mm fits the fork, they won’t fit the brakes. You’ll have to let air out just to remove/install the wheels. I think 25mm will be your max.
I worked in a big shop when all that stuff was current tech. 25s would fit on most bikes. 28s fitting on road bikes, front or rear, was rare.
My best advice would be to order one. It should fit the front, looking at the photos, no problem. Try on each position, order a