700c w/ 27" Cantis - any experience?
05-13-05, 12:22 AM
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700c w/ 27" Cantis - any experience?
So I found a few threads pertaining to this, but no specific answers. I just bought an '85(6?) Trek 620 that is going to be used for extended touring, by which I mean months on the road. It needs new wheels and is spec'd for 27"ers. I would like to go with 700c wheels if possible, but my only reasons are these: better rims choices availible, more tires(and types of tires, haven't seen many 27" folders) availble, and added fender clearance. Clearance may not be a big issue, but it would be an advantage. The problem is that I don't know if the brakes will line up. For any retro-tech specialists, the ones I have are mid 80s XT. Anyone try this conversion with the frame I have? Any predictions as to the fit? I know posts are brazed in different positions depending on manufacturer and modle, what should I expect? The frame is in the mail, so I have to wait a week at least before I can stick a wheel in the dropouts and test it.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
05-13-05, 10:41 AM
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Originally Posted by Ira in Chi
So I found a few threads pertaining to this, but no specific answers. I just bought an '85(6?) Trek 620 that is going to be used for extended touring, by which I mean months on the road. It needs new wheels and is spec'd for 27"ers. I would like to go with 700c wheels if possible, but my only reasons are these: better rims choices availible, more tires(and types of tires, haven't seen many 27" folders) availble, and added fender clearance. Clearance may not be a big issue, but it would be an advantage. The problem is that I don't know if the brakes will line up. For any retro-tech specialists, the ones I have are mid 80s XT. Anyone try this conversion with the frame I have? Any predictions as to the fit? I know posts are brazed in different positions depending on manufacturer and modle, what should I expect? The frame is in the mail, so I have to wait a week at least before I can stick a wheel in the dropouts and test it.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
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Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
05-13-05, 01:06 PM
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Originally Posted by cyccommute
You shouldn't have any problems with adjusting the brake pads to go from 27" to 700C. The size difference isn't that big from the brake's point of view. I've done this on a couple of bikes without signicant problems. All you will need to do is move the post up and down in the caliper until it alligns with the wheel properly.
I've been hoping this is the case, although I've seen a few examples where the 4mm difference in diameter did not work with the brakes. I'd really like to use the vintage XT cantis.
05-13-05, 04:40 PM
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Originally Posted by Ira in Chi
So I found a few threads pertaining to this, but no specific answers. I just bought an '85(6?) Trek 620 that is going to be used for extended touring, by which I mean months on the road. It needs new wheels and is spec'd for 27"ers. I would like to go with 700c wheels if possible, but my only reasons are these: better rims choices availible, more tires(and types of tires, haven't seen many 27" folders) availble, and added fender clearance. Clearance may not be a big issue, but it would be an advantage. The problem is that I don't know if the brakes will line up. For any retro-tech specialists, the ones I have are mid 80s XT. Anyone try this conversion with the frame I have? Any predictions as to the fit? I know posts are brazed in different positions depending on manufacturer and modle, what should I expect? The frame is in the mail, so I have to wait a week at least before I can stick a wheel in the dropouts and test it.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
Here's the next part of the question: If I am forced to go with 27s, what should I be prepared to deal with? Anyone know a great 27" rim? I can definitly find tires, the choices are just limited. I would like the equivilent of a 37-40mm if possible, know of anyone that makes folders?
Thanks in advance for the insight.
The 700c conversion works just fine. If you do decide to go with 27", however, Sun CR18s come in 27" sizes.
The Panaracer Pasela TG comes in a folder in 27x1 1/4" size. That's a bit skinnier than you want, but quite serviceable. I'm not thrilled with their durability, though.
05-13-05, 05:24 PM
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Originally Posted by halfspeed
Funny you should ask... https://www.bikeforums.net/showthread...light=trek+620
The 700c conversion works just fine. If you do decide to go with 27", however, Sun CR18s come in 27" sizes.
The Panaracer Pasela TG comes in a folder in 27x1 1/4" size. That's a bit skinnier than you want, but quite serviceable. I'm not thrilled with their durability, though.
The 700c conversion works just fine. If you do decide to go with 27", however, Sun CR18s come in 27" sizes.
The Panaracer Pasela TG comes in a folder in 27x1 1/4" size. That's a bit skinnier than you want, but quite serviceable. I'm not thrilled with their durability, though.
Wow I sure feel dumb
, should have looked a bit harder. Anyway, thanks for the link to that thread. Great looking bike, hope mine turns out as nice.
