Corima has launched two new wheelsets, the MCC EVO and WS EVO, said to balance lightness, stiffness and aerodynamics.
Launched at Eurobike, the wheelsets are hand built in France and available with either hookless tubeless rims or tubular rims.
Each model is said to save more than 100g compared to the outgoing models.
The two road bike wheelsets are available in several options and should cater to different riders.
Both wheelsets are available with 32mm or 47mm-deep rims. Corima says the shallower depth caters for mountainous routes, and the deeper rim provides versatility and strikes “the balance between performance and comfort”.
The road bike wheelsets are constructed with carbon fibre wrapped around foam on the inside of the rim, which aids stiffness.
The wheelsets feature a new ratchet system in their hubs. Corima claims the hub in the MCC EVO provides riders with a 17 per cent faster engagement and transmission rate than Corima’s previous D2T Ratchet hub.
The MCC EVO is the more expensive of the two wheelsets, costing £3,590/$4,200/€3,690.
The WS EVO retails for £1,890/$2,300/€1,990.
MCC EVO wheelset
Corima describes the MCC EVO as the “pinnacle” of its range and says the wheelset is aimed at racers.
The wheelset has a complete carbon fibre construction featuring a 3K carbon fibre construction, carbon Corima D2T hub and patented carbon fibre spokes.
The wheels have 12 carbon fibre spokes each. While this is fewer spokes than many of the best carbon fibre road bike wheels, Corima says the wheelset has the best stiffness-to-weight ratio on the market.
The carbon spokes are bonded to the rim rather than threaded through it, as with conventional spokes.
This enables Look to further decrease the weight of the wheelset because it does not have to add more carbon fibre to the inside of the rim where a conventional spoke would be tensioned.
Corima says the MCC EVO in its 47mm depth has an average of more than 15 per cent stiffness compared to its competitors.
At Eurobike, Corima revealed it tested the wheels against five competitors from top-brand manufacturers.
The top competitor matched the MCC Evo 47 for efficiency.
Corima has not said who the five competitors are.
The brand says the stiffness will help extend the lifetime of the product due to the minimising of warping in the wheel.
Elsewhere, the wheelset has an internal rim width of 21mm and an external width of 26mm. Corima says it is compatible with road bike tyres ranging from 25mm to 32mm.
Corima says the hookless version of the MCC EVO weighs a claimed 1,445g (32mm deep) or 1,480g (47mm deep).
The tubular wheelset weighs a claimed 1,280g (32mm deep) or 1,330g (42mm deep).
WS EVO wheelset
As the lower-priced of the two wheelsets, it should be no surprise the WS EVO has a lower spec than the MCC EVO, even if it retains many of the same features.
The wheelset also has a 3K carbon fibre construction, but each wheel trades 12 carbon fibre spokes for 20 R2 spokes.
This contributes to an increase in weight. The hookless version of the wheelset weighs a claimed 1,505g (32mm deep) or 1,540g (47mm deep). The tubular version weighs a claimed 1,390g (32mm deep) or 1,490gg (47mm deep).
The wheelset also forgoes a carbon fibre hub, instead featuring Corima’s EVO S Ratchet hubs.
These hubs share the same ratchet engagement system as the Corima D2T hubs, but, filling in the blanks left by Corima, do not offer the same 17 per cent faster engagement rate.
The WS EVO has the same internal and external rim widths as the MCC EVO, and can also fit 25-32mm tyres.
Lifetime warranty and crash replacement
With the launch of these wheels, Corima has also announced a new rim lifetime warranty and crash replacement scheme.
The rim warranty scheme should protect against any defects in the wheelsets’ rims.
The crash replacement scheme lasts for three years and you must register your wheelset within one month of purchase.
The wheelsets also feature a QR code, which links to a website where you can find out information such as optimal tyre pressure, a list of compatible tyres and instructional videos about the wheels.
