Does anyone use this setup? I want to use it because I would like to use a threadless fork, and most -if not all- are made for 700 wheels.

Are there benefits or hazards?

Thank you,
Milo

what about 700c rear and 27 in the front? i know other people have ridden this setup, and i need to get a new rear wheel. would it be best to just buy a new front wheel as well (assuming i can fit a 700c in front with my brake)?

i would just save up and get a new wheelset to tell you the truth. When I originally built up my girlfriends bike I used a 700 in the front and a 27 in the back.... there was nothing bad about it except when I filled up her tires I would have to have an adapter.... which sucked, I eventually just put on another 27 and she rides that around now. I would just save up and set it up right the first time...if you do have to ride with mismatched tires, I dont think you will notice much of a difference.... unless you are doing a lot of hardcore miles... but even then, who knows.

what about 700 in the back with a 700 in front using long reach calipers ers ers ers ers ers ers ers ers eres dsw alk;fmnkdmkasd
ctlkas;
FKJ"
A: J

its 4mm difference...it doesnt matter. dont waste money on matching wheels and brakes.

as far as the need for 'adapters', you can certainly run schraeder tubes in a 700 rim.

If you saved your rear brake calipers (assuming this was a conversion), sometimes the rear calipers have a longer reach than the front. If I were to put my old rear brake up front, I would have no problem with reach on a 700c wheel (running 27" F+R now).

I run 27" in front, 700 in back. With long-reach calipers, the slight difference between the two wheel sizes can be compensated for.

Also, I run presta valves on both ends, so no need for an adapter. If you have schrader-drilled rims, and want to use presta, just use two nuts on the presta valve, one inside the rim and one outside- it keeps the valve in place very nicely.

As for the tires, having two different tires should make no noticeable difference in handling, unless you are a pro-racer or a bike magazine product reviewer.

I just built a bike running 700c in the back ('cause that's what the track wheel I managed to get my hands on is) and a 27" in front, 'cause that's what the frame I pulled out of the dumpster had on it.

It's a fixie, so I just left the stock front caliper brake on the front and went brakeless on the rear, and it rides quite excellently. I can't even notice the wheel difference.

Good luck.

I use to run this setup since I wasn't able to find a good sturdy rear 6 speed wheel.

I had a 27" Araya and a 700c Mavic 221. No problems. Go for it.

The only problem that you may run into is matching the tires. 27" tires don't come in a lot of varieties like 700c. So that's the only down side. Although, I use to run the Specizlized Armadillos 27 x 1.25 which rocked. I don't know if Specialized still sells this size.

How does the bike handle with that setup?

No handling problem. The difference is so small to even bother noticing.

I wouldn't tour in a remote area with such a setup, simply because I would then need to carry two spare tires.