Bicycle Mechanics - Spoke Length Help
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Could anyone help me out with a good spoke length for Shimano DX Hubs laced to 36h Campagnolo Thorr rims (the 26" MTB ones). Any help would be appreciated. Thanks.
03-20-05, 01:20 PM
these lengths are for shimano DX BMX hubs
front, 3x: 261.7mm
rear, 3x left: 259.3mm
rear, 3x right:259.5mm
so I would need to buy 3 sets of spokes to make 1 wheelset? Geez, in the bmx world 1 set of spokes will build 2 wheels almost every time...
further questions, if I am buying 3 spoke lenghts why not go for a radial front and a radial non drive side. Can anyone help me with the lenghts for that?
03-20-05, 05:05 PM
Do not radially lace a hub with 36h. Radially lacing puts abnormal stress on the flange, and there isnt a heck of a lot of material between each hole with 36h. No manufacturer will answer to a warranty call if their hub was radially laced. And if your using disc brakes forget it.
No disc brakes here and the hubs are far from something I would warranty, however if 3 cross is universally recommended, 3 cross it shall be. To add something more, would it be acceptable to go with say, 259mm rear spokes and 261mm front spokes? or should I round up on the spoke lenghts?
03-20-05, 05:51 PM
Go 3 cross, the disadvantages to radially lacing far outweigh the advantages which are hardly worth mentioning, it looks cool, in theory has a very slight aerodynamic advantage and saves a whole 7 grams (approx). Some will probably disagree but I have done this with my builds with no issue, its okay to deviate +/- 1mm from the correct spoke length. So just go ahead and buy all 260mm, you will not have an issue.
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