Iconic French biking model Mavic has introduced a brand new addition to its long-standing Cosmic vary of street wheels. The Cosmic S 42 because the identify would possibly counsel is a 42mm deep aero profile carbon wheelset that goals to mix efficiency and affordability right into a single package deal.
Retailing for £900 / $999 / €999 the wheels are positioned competitively in opposition to the likes of Hunt’s 40 Carbon wheels and Zipp’s 303S. The Cosmic S 42 are barely narrower than the competitors with a 21mm inside rim width whereas each the Hunt and Zipp options sit round 1mm wider. In actuality, this isn’t going to make a world of distinction with a 28mm tyre fitted but when your intentions lay extra on the unpaved finish of the spectrum with some greater quantity rubber fitted it could be one thing to contemplate.
The Cosmic S 42 wheelset makes use of a 21mm inside rim width and bladed spokes. (Picture credit score: Mavic)
Mounted to Mavic’s personal QRM ID360 hubs are normal bladed J-bend spokes. These solidify the wheelset’s aero credentials while additionally retaining an ease of upkeep that isn’t at all times afforded to aero wheels. J-bend spokes are simple to search out at most bike retailers and are simple to put in and rigidity with out the necessity for particular tooling past a spoke key.
The theme of simple upkeep continues with the ID360 (Instantaneous Drive 360) hubs, which have been round for various years now. The design makes use of two ratcheting rings as an alternative of a extra standard pawl design, permitting for higher engagement with a larger engaged floor space and makes hub companies somewhat simpler.
For individuals who desire to run a tubeless setup, Mavic provides the Cosmic S 42 with a pair of UST tubeless valves, and can pre-tape the edges. Which means that all you could do is match any of the finest tubeless street tyres with some tubeless sealant and inflate the tyre.
The 42mm rim depth and sub 1600 gram complete weight put these wheels firmly within the ‘all-rounder’ class. (Picture credit score: Mavic)
Though not the lightest wheels on this class the Cosmic S 42 wheels are available in at a good weight with the entrance wheel tipping the scales at 745 grams and the rear at 850 grams. The whole wheelset weight of 1595 grams places them inside a handful of grams of Zipp’s 303S wheelset solidifying their place within the all-rounder class.
For lots of people deciding to buy a carbon wheelset comes with a point of concern. Mavic consists of what they name a 2+1 12 months guarantee with the Cosmic 42 S wheels. Mavic additionally provides crash substitute on all of its carbon rims so if the worst does occur, you received’t must pay full retail for a substitute.
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Mavic provides the Cosmic S 42 wheelset with a Shimano/SRAM HG freehub physique as normal with SRAM XD-R or Campagnolo N3W freehub our bodies obtainable for buy individually. Though the hubs come fitted with finish caps for 12×100 and 12×142 through axles they’ll simply be configured for quick-release hubs with the offered adapters.
