2 different wheel sizes

Posted by: intrepid02

2 different wheel sizes - 11/15/07 05:56 AM

So, I moved to Boulder a while ago and subsequently started a bike collection. I just finished putting together bike number 4 (a fixed/free mountain bike set up as a commuter). My favorite bike though is an early 80's Miyata Road bike that I have stripped all the components (including brakes) off of and ride as a fixie around town and on short rides with my girlfriend.

So, it came with 2 big old-style 27 inch wheels on it. I could not get a 27 inch fixed-gear wheel, so the back now has a modern 622mm/700c wheel. My question then, is does this make a difference? I feel like it is a little less efficient with a big wheel in front, but it is hard to tell. Tonight I rode it with a 622 off my road bike and it was definitely faster, but that is also a much lighter wheel.

Do you think its worth replacing the front wheel with a newer, smaller one?
Posted by: jdw

Re: 2 different wheel sizes - 11/17/07 12:50 AM

Definitely get a smaller front wheel. With that big front wheel its like you're always going uphill and it is that much harder to pedal.

Posted by: Mike Rawdon

Re: 2 different wheel sizes - 11/17/07 03:16 AM

Cannondale used to make a MTB with a smaller rear wheel. I rode one and it's fine. More recently, Terry had a full line of small-rear bikes. I can't believe there'd be a significant difference in rolling resistance due to the diameter. Tire design or pressure maybe.
Posted by: intrepid02

Re: 2 different wheel sizes - 11/19/07 05:41 PM

Well, God bless Craig's List. I managed to pick up a new front wheel with a white industries hub and Mavic rim for $50. It's about half the weight of the old wheel, and the geometry of the bike now just feels faster. My Fixie just got that much more fun!
Posted by: billythemountain

Re: 2 different wheel sizes - 03/08/08 03:10 AM

Your a Knucklehead, take that fifty bucks and get a shave and while your at it lose the helmat and head lamp, sheeeez