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Corima MCC EVO & WS EVO road wheels updated with hookless, tubeless rims

Corima MCC EVO full carbon one piece road bike wheels shown on Cofidis team bike
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French brand Corima has redesigned their top-level road wheels with a hookless tubeless rim profile, making them lighter and more compatible with modern, wider tires. Tubular options are still available, too, but the big news is their move to a modern tubeless-ready design.

Both come in 32mm and 47mm deep rim profiles, all having a 21mm internal width that fits 25-32mm wide tires. And both get their latest ratchet rear hub, which uses 36-tooth ratchet rings for 10º engagement, approximately 17% faster than the prior hub.

Both wheels also use a 3K carbon laid over their rigid foam core, which acts as a structural element to improve compaction during molding and add lateral stiffness.

The MCC EVO is their top model, coming in at a bank-busting $4,200 (3690€ / 3590£) for the set, but Corima claims they have a 15% better stiffness to weight ratio than competitor’s wheels. They claim the improved torsional stiffness sends more of your power into forward motion, so you’re faster and waste less energy.

Corima MCC EVO full carbon one piece road bike wheels

They use full carbon spokes with a carbon hub shell and rim, all bonded and molded together to create a one-piece wheel. Claimed weights are:

  • Tubeless hookless wheelset weight: 1445gr (32mm) / 1480gr (47mm)
  • Tubular wheelset weight: 1280gr (32mm) / 1330gr (47mm)
corima ws evo carbon tubeless road bike wheels with carbon spokes

The WS EVO is very similar, but with their S EVO Ratchet hub (same internals) and 20 spokes per wheel. The spokes are carbon here, too, they just look and lace more traditionally. Wheelset prices are $2,300 (1990€ / 1890£). Claimed weights are:

  • Tubeless hookless wheelset weight: 1505gr (32mm) / 1540gr (47mm)
  • Tubular wheelset weight: 1390gr (32mm) / 1490gr (47mm)

Available now online and through dealers.

Corima.com

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Brent
Brent
1 year ago

The rims make no sense.
You can’t properly fit a 25mm tire and have proper integration with the rim. On a 21 internal rim the tire will be between 27/28mm wide and protrude from the rim by 1-2mm.
The hookless and it’s 5bar limit requires way wider tires to not be penalising in rolling… then increasing the problem of aero integration.
The only case than “could make sense” is the tubular rim mounted with 25mm tubulars… but a 29mm external would have been better, giving the flexibility to use 25/26/28mm tires

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