Shimano highlights issue with Dura-Ace wheelsets

Exposed edges on rim can lead to flats

Shimano has issued a warning to customers after uncovering a potential problem with two of its Dura-Ace road wheelsets.

The WH-7850-C24-CL and WH-7850-C50-CL clincher wheels come with spoke hole plugs instead of rim tape. Shimano has found that exposed edges on the outer rim wall can cause punctures, so it is advising owners of the wheelsets to switch to full rim tape.

This can be obtained free by calling your dealer or distributor. 

All wheels shipped since the problem was noticed already come with rim tape.

For more information, visit Shimano's website.

James Huang

Technical Editor, US
James started as a roadie in 1990 with his high school team but switched to dirt in 1994 and has enjoyed both ever since. Anything that comes through his hands is bound to be taken apart, and those hands still sometimes smell like fork oil even though he retired from shop life in 2007. He prefers manual over automatic, fizzy over still, and the right way over the easy way.
  • Discipline: Mountain, road, cyclocross
  • Preferred Terrain: Up in the Colorado high-country where the singletrack is still single, the dirt is still brown, and the aspens are in full bloom. Also, those perfect stretches of pavement where the road snakes across the mountainside like an artist's paintbrush.
  • Beer of Choice: Mexican Coke
  • Location: Boulder, Colorado, USA
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