Elite mini race rim made from 6061-T6 aluminum with a double wall design for the perfect balance of weight and strength.
Bead Diameter: 520mm
Weight: 12.6 oz / 357 gr
But I need to verify what diameter is required.
i did some cad design for our local bike builder.
and the 24" wheels that i planned to build for her
i guess ill have to mothball the 24" project, as she is already having fun on the 650
I just purchased one of these ( http://www.extralite.com/index_euro.htm ) to put on a set of these ( http://speedlineparts.com/?page_id=256 ). My son is going to try climbing Mt. Washington and this was the only way I could find to get low enough gears on a crankset 150mm long... it's also a ridiculously lightweight combination.
Wheels are next as previously discussed.
I have some older DA 7800 parts I planned to use on a second 'cross bike, but I may install them on this bike for my son. Using these ( http://www.specialized.com/us/en/bc/SBC ... spid=57427 ) he can reach the levers very easily. I'll purchase carbon fiber cages (long) and some other parts to tune the rear derailleur... like these, https://www.facebook.com/media/set/?set ... =1&theater and marry that up with a 10-spd MTB cassette. Maybe one of Nino's?
My goal is to keep cost down by using parts I already have on-hand as much as possible or buying used when necessary. If only someone made a lightweight hndlebar in a 34cm width...
http://cgi.ebay.com/20-Piedrahita-Kids- ... 20ba1e6ee3
This is the same builder who supplied the 20" road bike my son has been riding for the past 2 years. We love the bike. I highly recommend it to any dad wanting to buy one for his child.
Wheels are still an issue. I'm trying to find rims to mate up to 16F/20R hubs but can't find any rims with less than 28 spoke holes. Maybe I've vain, but I don't like the look of unused spoke holes. I did find some 24-hole tubular 24 inch rims that I am considering. But, since juniors can't race with tubulars, this may not be a worthwhile investment. I tried contacting Velocity, Sun, and Alienation about possibly ordering some of their rims with custom hole drilling, but no one replied.
Another component that I can't seem to find is a lightweight set of handlebars in his size. He's riding comfortably on a set of 34cm alloy bars which are not at all light. But we may have to make due with them. I've considered cutting them down a bit and even thought about a bit of drillium on the remaining ends. He spends most of his time on the hoods and, at about 55 pounds, won't be ripping them apart for sprints.
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