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Old 01-10-08, 12:37 PM   #22
tfahrner
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Location: portland, oregon
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Quote:
Originally Posted by Abneycat View Post
You know, thats probably actually a really good idea.. Lots of strong BMX offerings out there, Big Apples come in 24", hmm..
For Xtracycles including Big Dummy, I greatly prefer 24" wheels with 2.35" Big Apples to 26" wheels with either high or low volume tires. High volume tires provide the only suspension to be had for the dead weight of your cargo, and improve braking and comfort. 24" lets you have it while still keeping the bottom bracket in the range of road bikes, so you can get a foot down to stabilize at stops, and mount/dismount easily without leaning the bike. This matters with a heavily loaded bike, particularly if your load is precious and mounted high, like a kid.

You need disc or drum brakes to swap wheel sizes like this.

A similar trick is to start with a so-called "two-niner" frame (designed for 700c rims with poofy tires) and fit 26" wheels; e.g., http://clevercycles.com/?p=136 .

This advice doesn't apply if you intend actually to jump logs and so on with your cargo bike, or if you insist on pedaling through high speed sharp turns, such that you risk striking a pedal. Both Xtracycle and Surly do tend to promote the concept of these bikes being MTBs, and optimize ground clearance accordingly. I'm more urban/pavement oriented, excluding curb-hopping.
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