News
Shimano warns of puncture prone Dura-ace
Mark Sutton Oct 8 2008, 11:06am
Comments (3)
DURA-ACE clincher tyre wheels WH-7850-C24-CL and WH-7850- C50-CL affected
Shimano has found that there is a greater likelihood of a puncture in DURA-ACE clincher tyre wheels WH-7850-C24-CL and WH-7850-C50-CL. This is due to the surface texture of the rim in combination with the use of spoke-hole plugs.
The phenomenon can be very easily eliminated by replacing the spoke-hole plugs with genuine 18 mm high pressure Shimano rim tape.
At the website http://cycle.shimano-eu.com an instruction can be found about replacing the spoke-hole plugs by rim tape.
All Shimano clincher wheel sets will be delivered with Shimano
rim tape as of now. Dealers are instructed to supply Shimano rim tape free of charge to consumers affected by the problem, for which a refund will be available from Madison who have been sent replacement stock.
Comments
“No punctures.”
Posted by: Sealab2021 - Oct 9, 7:23pm
I've been using the Shimano WH-7850-C50-CL wheels for a few months now. I paired it with Rox Ultralight Rim Strips (3g), Forté Road UltraLight Long Presta Tubes (75g, 0.6 mm thin butyl rubber), and Michelin Pro 3 Race Tires (700c x 23).
The wheels have been great. Knock on wood; I have yet to puncture or pinch flat. Forté's long presta valves are 60mm long, so you don't need valve extenders.
To and from the trails are ~6 miles of glass strewn, pot-hole invested Windy City streets. I have the tires filled up to 115psi, and I'm a clydesdale.
“Re: No punctures.”
Posted by: Sealab2021 - Oct 9, 9:20pm
I forgot to add this...
Thank you, Shimano, for your honesty and coming forward with this issue.
“Re: Re: No punctures.”
Posted by: ee - Oct 12, 3:23pm
yes, they fessed up to a problem! bravo for a change.