I think Ill be getting a Large Marge rim, and want to know what the spoke length will be. I will be using the LM (26" rim), and a profile hub. If anyone has this setup, can you tell me how long your spokes are?
Also would my spokes I have in my wheel now work? I currently have a profile hub and Alex dx32 rim. If someone could find a spoke length calculator, that would be nice too! UDC’s deosn’t have the LM rim on it.
I could be mistaken about this but I recently changed over a new KH drilled 24 rim to a LM and the wheel builder tried to use the 13 gauge spokes but couldn’t find nipples for them anywhere – and this was a pretty top end bike shop in LA, so I figured they could find anything. I don’t know why he didn’t use the nipples from the KH but for some reason he didn’t or couldn’t.
I just mounted a Gazzaloddi 3.0 on my LM rim and let me tell you that even though I chose to use 14g spokes this wheel is bullet-proof. I built a 3X interlaced LM with a UDC extra wide CrMo hub for added strength and I am very pleased with the result. Hopefully my frame will arrive next week and I will be good to go. Can’t wait!
I emailed Surly bicycles last week to inquire about the correct ERD for the Large Marge non-offset rim. After several days of no response from them I emailed Surly via a different address I acquired. I received a response from the first email I sent which stated
About 30 minutes later I received a response from the second email I sent which stated:
Confused I took my rim and inserted a small dowel through one eyelet on one side of the rim through the eyelet 180 degrees across and measured 536mm.
Unicycle.com/UK has a nice spoke calculator on their website. It’s quite nice! You simply select the components your planning to use and click the button to get your spoke length. They’ve just added the Large Marge rim to the formula. The formula is for 14g spokes but you can easily modify the number for spoke hole diameter if you planning to use another guage. What’s also nice is that if the rim your planning to use isn’t on the list but your hub is, you can retrieve all you hub dimensions by selecting your hub and any rim then copying down the hub dimensions that apply. You can get the effective rim diameter (ERD) from the manufacturer or you LBS and your all set.
Being only 140 lbs. I’ve never broken a crank arm yet. If I start breaking them I’ll have to switch to a splined hub or maybe design a crank arm that won’t break. I’m not going to worry about it though.
Louise Loville is probably 40 pounds lighter than that and her square-taper crank got loose in Moab, ending her day. It just doesn’t make sense to me to haul around the extra weight of a Large Marge and then cripple it with a crank interface that’s known to be problematic for extreme riding. I hope it works out for you, but I fear that it won’t.