Bicycle Mechanics - Axel driven Wheels ? (trikes & Quads)
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06-08-08, 02:08 PM
OK, I give up... how do affix a wheel to an Axel for DRIVE...
I want to build a Trike, and the original design calls for a 3/4" Axel and custom wheel/hub/Axel combinations that are really different...
I am sure that Rhodes and other Quad/Trike bikes have a simpler way of mounting a semi-stock wheel/hub onto a driven Axel...
I have looked everwhere for info on these and can't find anything...
Custom building a Hub that is permantly welded to a 24" x 3/4" axle is not my idea of fun and one of the things stopping me from building my trike..
Hope someone can point me in the right direction
06-08-08, 07:06 PM
one wat to do it is like what sun trikes do. They weld a plate to the axle that has 3 pins that line up with three holes in the hub flange. The hub slides on and is held in blace buy a nut treaded onto the axle.
06-08-08, 11:03 PM
How about building up wheels using disc-compatible hubs, and using the axle to provide stability and the dics mount holes to provide power.
06-08-08, 11:07 PM
Do you actually have hubs welded to the same axle? Wouldn't that mean the wheels can't turn independently, making it hard to steer?
06-09-08, 06:47 AM
I have looked at Miami Sun... whose Hubs do they use that have the holes? EZ3-Rider says "Aluminum" for their trike Hub vs a real name on all their standard ones... What diameter can I get for an axle and what do I do with the bearings...seems like they are in place, and the connection between the "flange" and the hub is actually loose...
As for split axles, yes they are split/cut in the middle somewhere to allow for turning. Rhoades actually has a "limited slip" option that drives BOTH through a clutch/differential for winter ridding.
More questions than answers...
British racing trikes (upright, not recumbent) mostly have custom hubs. The drive hub/s is/are usually broached for a hex axle. http://www.tricycleassociation.org.uk/TrikeAxles.html and http://myweb.tiscali.co.uk/trykit/ may help.
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