Originally Posted by
wordsofglass
I am trying to rebuild a Mavic Aksium front wheel. I got into a wreck (see fork/broken rim in image) and the rim broke in half at one point. Some spokes were ripped out, but the flange on the hub looks pretty straight. There are small dimples in the holes where the spokes were ripped out, but nothing that looks like it would make a hub unsafe or anything. I'm looking at a Velocity Aerohead to replace the rim and replace a few spokes that were seriously bent and dont seem to want to be bent back. Will an Aerohead probably work? From what I can measure, the profile of the Aksium rim is 7/8" or 22.2mm so the Aerohead's ERD of 602mm should be fine in theory...Any strong warnings or advice would be appreciated. No specs on ERD seem to be available for the Aksium rim, but Aerohead is one of the few rims that come in 20h in what seems to be a rim with a similar profile.
Just a couple of general comments ...
Mavic has a couple of product lines that are pertinent to this discussion. One is consumer rims that are sold with the purpose of people building wheels to their own specs. It's not too hard to get ERDs, weights, and other specs for the consumer rim line. The other product line is Mavic wheelsets which are totally custom to Mavic. Askium Race are in this second category. To make things match you need Askium Race hubs, Askium Race spokes, and Askium Race rims. You are not going to find ERDs or any other standard measurement anywhere. That being said, you "could" do the measurements on your own and determine a spoke and rim that will work with that hub. I'd hazzard a guess that you need to measure the ERD on the original rim, measure the ERD on the your proposed replacement, measure the original spokes, calculate the differences, and then run your measurements on SpoCalc or some other spoke calculator.
What you are asking is not (likely) going to be readily available anywhere and the only way you're going to get the information you're looking for is to bite the bullet and do it yourself. Any decent wheelbuilder could do this. Once you learn to measure ERDs, do standard hub measurements, and use a spoke calculator, AND, be willing to take a chance, then you're on your way. If you think there is an easy answer to your question, I'd say probably not.
You could not do this - at all - with most Mavic wheelsets, as the spokes are mostly totally custom. Askiums do use a "near_normal" bent elbow spoke.
Good luck ;-)