Join Date: Dec 2004
Location: Logan, UT
Bikes: one bike for every day of the week
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Originally Posted by Chuck G
Any rims 24.5mm wide that are significantly lighter, like in the 400g range?
At 400g we're talking racing rims and there aren't any that wide.
I wouldn't want to use racing rims for loaded touring because larger tires would get squirmy on a narrow rim when heavily loaded. Spoke fatigue and subsequent breakage on an unsupported tour is also something you don't want happening on a regular basis.
The best I found in an eyeleted, 36-spoke, 22mm wide, machined sidewall rim were the Bontrager Mavericks at 485g apiece. They are actually discontinued 29er mountain bike rims. Salsa Delgados are also pretty tough at 22.5mm wide and 510g apiece if I recall correctly.
If you're going lightly loaded, lacing up some 36-hole CXP33's and sticking to tires no wider than a typical 700x32 would be an option. With obsessively well tensioned spokes, I don't think I could hurt them. At that point though you'd have to ask yourself "Why such light rims on a frameset that must come in close to 10 lbs?" A 6 lb. Soma Double Cross frameset may well offer better bang for the buck.
No matter how you set it up, a Randonee is never going to get very light or very fast. I upgraded my Jamis Aurora from top to bottom with parts I already had (mostly Ultegra) and after dropping almost four pounds from the bike, it still weighed 29 lbs. I could drop another pound but what's the point? It's the heaviest bike I own and that includes the old school bomber and the full suspension bike. I love it though. It's the only one in the stable that will let me carry things like car batteries, bowling balls, and watermelons.