Description Genuine Shimano 105 8/9-spd hub, laced to semi-aero Mavic CXP-21 rim with machined sidewalls for improved braking power. Silver anodized rims are complimented by silver 14/15G spokes and brass nipples...
Summary: I have road the CXP 21 with out a problem. I ride on all kinds of terrain and in all kinds of weather. I am by the coast so you never know what the marine layer will do. I love them.
Strengths: Handle the bumps like a mountain bike.
Weaknesses: I am 200lbs and to this point I can not find a weakness in these rims.
Similar Products Used: CXP 22, and an older Mavic 44.
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Summary: Not impressed! First set degraded quickly (1500 miles), spokes kept breaking on front, rear rim warped in an emergency slide to avoid a car that was about to pull out of a gas station in front of me.
Front wheel on second set is good after about 2000 miles, but the rear rim is fracturing at several spoke holes. At 220 lbs, I am heavier that most riders, but of all my bikes, this is the first time wheels have suffered this kind of fracture.
Strengths: I like the red/black color, and the ride was great until the wheels gave out.
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Summary: I received these wheels as stock on my OCR 1 two years ago (no, I didn't pay $900 for just the wheels). They're kindof heavy, about 2.2kg for the set.
However: After less than 10,000 km, I have found signs of stress fatigue cracking around the spoke holes in the rim. I'm not that heavy of a rider (78-80 kg) so they should've lasted a lot longer.
The 105 hubs are definitely the highlight of the wheelset. It's a great hub that doesn't way much more than the DA hubs (about 44g) for a fraction of the price. Maintenance on the hubs has been a dream (ie, no maintenance required).
Final analysis: Good hubs, lousy rims. Keep looking.
Strengths: 105 hub = good performance for not too much $$$
Weaknesses: heavy rim which cracked way too early.
Similar Products Used: none
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Summary: Bomb proof rims are perfect for commuting, training, or touring. They've lived on my commuter for five years and have needed NO MAINTENANCE WORK - never even been out of true once! I don't own a car so they've seen their share of miles, potholes, curbs, snow, and rain.
I give them a four simply because they are too heavy for a serious rider looking for performance.
Strengths: indestructable!
Weaknesses: too heavy for optimal performance
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Summary: These came laced to Tiagra Hubs on my Felt F75. The front one I haven't had to touch in 1898 miles of training in Atlanta. Atlanta has the roughest road I've ever come across, so that is saying a lot. I've broken a bunch of spokes on the rear, but only then I've just inserted new spokes, retensioned and the rear rim came back into line. I had a friend crash infront of me on the same set of rims and his rear was trashed. I've crashed worse than that and it didn't do that, but I'm also not is 220 pounds either. For training rims, I don't see anything better for the dollar out there.
Strengths: I am 195 and ride 120 miles a week. These things let you focus on doing one thing...TRAINING.
Weaknesses: None! Heavy guys don't fear, with proper tension, these are your trainers!
Similar Products Used: I race on Reflex Sew-ups.
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