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Zipp 303 Firecrest Carbon Clincher Rear Wheel
Iím not trying to leak any secrets, but Zippís Firecrest shape is probably alien technology. I mean, itís lightweight, more durable, more stable, better handling AND faster? How is that possible? Itís not, which proves my point that the Zipp 303 Firecrest Carbon Clincher Rear Wheel is something out of this world. Featuring a wider rim width for better handling and a 45mm deep rim, the Firecrest shape moves the center of pressure of the wheel backwards, giving Firecrest wheels an unmatched stability in crosswinds. Faster than ever and light enough to climb up the steepest gradients with ease, the Zipp 303 is one aero wheel that can do it all.Firecrest shaping
Wider rim width
ABLC rim dimples
188 hub with Swiss steel bearings
compatible with cassettes of up to 11-speed
Weight Ė 800g
Max recommended rider weight Ė 250lbs
The wide profile of the 303 Firecrest is crucial to Zippís revolutionary Firecrest technology used to create wheels with superior aerodynamics as well as improved stability and handling.
The rear 303 Firecrest may present some fitment issues for a small number of road and triathlon frames. The clearance between the chainstay and the rim may not be adequate to avoid contact between each other when ridden under load.
Customers who run into this fitment issue may select any other spoked wheel within the Zipp lineup as an alternative,including the 404 Firecrest with its narrower aero-width profile.
Below is a list of known frames that may present this issue. This list will be updated if this fitment issue is discovered elsewhere.
Specialized Tarmac SL4
Specialized S-Works McLaren Venge