Description
This new rim design eliminates the traditional bead hook and uses our new bead socket technology?. It moves the sidewall of the rim down by 2-3mm.
By eliminating the bead hook and lowering the sidewall by 2-3mm we reduce the weight of the rim. Some of this material can be used in the center part of the rim making it stronger and stiffer.
The curve of the rim sidewall is the same shape as the bead of the tire so they fit together like a ball and socket joint. This design will help reduce the strain on the tire bead while creating a tighter seal.
By lowering the sidewall of the rim we also reduce the mechanical leverage the tire has on the rim. This will make the rim stiffer and last longer by eliminating flexing that can cause cracking.
With these short sidewalls the tire should not hit the rim and pinch flat as often as standard rims, either with or without tubes. This design will allow you to run lower pressures and use 4mm more of the tire than ever before.
Can be used with or without tubes.
Rim Specs:
Weight: ~350-380g
Rim Width: 24.4mm
Drilling: 32 hole
ERD: 540
Braking: Rim Brake / Disc
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Cons: Price, problems keeping them true.
Recommendation: I own the 650b ZTR 355 with American Classic hub. Its a nice wheel, but it has problems remaining true. The guys at my LBS use them and haven't had this issue. I weigh 170 and ride xc only.