I don't have extra spokes lying around, nor am I really able to do much work at all on my bike, as I'm staying in a tiny apt. for a friend. So I can't measure the ERD of my bent MA 40 rim. Just trying to see if someone here might know offhand:
(1) What's the ERD of this rim (27", MA 40)?
(2) Is there a currently manufactured rim (Weinmann?) I could use to replace this rim w/o having to swap spokes? Or does someone know some obscure seller who happens to have a stash of these for sale? (I already posted on the ISO thread with no luck, so I realize it's not likely).
(I found one replacement on ebay, but the seller's in the UK and wants something like 90 bucks for the rim, plus a large added shipping charge. That would undermine my whole purpose here, which is to replace the rim at a minimum of cost.)
Ideally, I'd like anything similar--double-walled, eyelets, etc.
TIA for any helpful suggestion or just encyclopedic info.
I picked up a pair on ebay not too long ago, but they're 700, gray anodized... Keep looking, its out there somewhere.
If its a similarly designed rim I don't think you'd have to change the spokes. Loosen the all, tape the new rim next to the old, transfer the spokes one at a time without removing from hub, retension and true.
I think you'll be fortunate to get an exact match without buying another MA40. Sutherlands rim charts show 27" Mavic rims varying by as much as 4 mm so even another Mavic can be wrong. ERD calculations can also be inexact.
Maybe a used wheel is an easy and cheap option? Front, rear, spacing?
Hey, thanks for the feedback and tips. Clubman, I actually thought I had found a great option today--a double-walled Rigida w/ Maillard hub on CL for $20. Unfortunately, it turned out to be 700c size. This is from my '82 Trek 412, and I am trying to keep the thing as close as possible. Also, when I tried to bend the rim of the MA 40 back today, one edge actually cracked, and it's now officially toast. The tire I have on is actually a very lightly used, original Michelin, as well, so I'm just hoping I can swap everything over but the rim.
The rear spacing, I'm fairly certain is 126 mm (6-sp Suntour freewheel, unaltered); front is a double-walled Rigida rim, which is why I'm sticking with the double-walled. They also just seem much nicer than some of the other 27" wheels I've had (most of which were box-rim and single-walled).
Anyway, thanks for the feedback. CV-6, thanks for the ERD and the link to spocalc. I had forgot about that. I'll hunt around for a rim that might match.