Over time derailleur pulleys wear out. Either the bearings go bad, or the teeth wear down enough to negatively affect shifting performance. If your bearings are feeling notchy, or the pulley teeth have rounded out, it's in your best interest to replace the pulleys to get the most out of your drivetrain. These are genuine Shimano replacement pulley wheels for the Dura-Ace road rear derailleur, sealed bearings included. Be sure to select the correct option for your derailleur, whether it's Dura-Ace 9100-series or Dura-Ace 9070-series. Each kit includes two pulleys, enough for one derailleur.
8 avaliações para Shimano Dura-Ace 11 Speed Road Pulley Wheel Kit Black, Dura-Ace Rd-9070
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Hudson Rich (comprador verificado) –
Great upgrade to shimano 105 11 speed derailer.
Great upgrade to my shimano 105 11 speed derailer.Made the chain drive and cassette much quieter and smoother.The 105 pulleys have an upper sleeve bearing and lower pulley has nothing. The DA pulleys both have ball bearings that came be cleaned and lubricated. Made all the difference.
L. Foote (comprador verificado) –
Smooth shifting
Replaced the worn pulleys on my Integra derailleur with these. Nice upgrade. Shifts smooth as butta.
Brett (comprador verificado) –
Great replacements
Great replacements for my ultegra rear derailleur on my gravel bike. Have held up well over the past 6 months of abuse.
Tuna (comprador verificado) –
Wish I had done sooner!
So quiet, so smooth. Installed last week and the drive train on my Dura Ace 9000 system (with a new chain) and these pulleys felt soooo smooth. Wish I would have done sooner!Simply install. Just note to initially take off the old pulley it may require some force. Be patience and trust “left loosey” 🙂
George B (comprador verificado) –
I upgraded my derailleur
My Shimano Acera RD-M3020-SGS long cage derailleur is the best derailleur I could find that checked all the boxes for what I needed. I use a 9-speed 11-42 tooth cassette and SRAM PC-971 9-speed chain. I can live with the plastic parts and the steel (but very thin and strong steel) pulley cage but the plain bearings in the pulleys really bug me. It’s actually a very good derailleur, Shimano just went cheap on the pulleys because that’s the “market niche” this particular derailleur fits into. I’m betting it would cost less than $2 to put good, sealed bearing pulleys on every derailleur Shimano sells. But then it would be harder to sell a $500 battery powered derailleur.Anyway, here’s all the hard-to-find specs for these Dura-Ace pulley wheels so you can tell if you can upgrade your derailleur with the 9070 sealed bearing pulleys. The 9070 Dura-Ace pulleys are a little narrower than the 8mm wide pulleys that were in my derailleur, about 7.6mm if I remember correctly. Since my cage side plates don’t connect to each other the slight difference in width doesn’t matter.The bolts that hold the pulleys on my derailleur are 5.04mm. The holes in the original pulley side dust covers are 5.09mm. The holes in the side dust covers of the Dura-Ace 9070 are 5.44mm. So, about 1/3 of a mm difference. I don’t think that is enough to matter, they’re very secure in the cage, the chain has plenty of clearance, and the pulleys turn freely on their sealed ball bearings. It shifts very crisp and precise; the chain is silent when riding.So, are the Dura-Ace 9070 pulleys with sealed bearings better than stock pulleys with plain bearings? Absolutely! If nothing else, the warm fuzzy feeling I have knowing every rotating part of my expensive recumbent road bike is turning on quality ball bearings is worth $39. Even though that is quite a bit more than I paid for the derailleur in the first place!
Jordaaan (comprador verificado) –
Extremely Quiet!
Just replaced my Shimano Ultegra R8000 pulley wheels with these ones! Not much of a noticeable sound difference on the stand but noticed they were extremely quieter while out on the first ride with them. Very noticeable difference for only an extra $10. Will buy again.
ForgetIt (comprador verificado) –
Terrific. Usable ONLY on DuraAce
Very nice part BUT beware if, like me, you thought of upgrading an Ultegra pulley wheel: this is NOT compatible with Ultegra. Sold it to another cycling club member who does have a DuraAce drive train 😀
SP (comprador verificado) –
Easy to install.
Somehow my LBS and I missed replacing these pulleys, they lasted for about 6 years and 40000 kms and were completely worn out but still worked.New pulleys were easy to install and shifting is so much better now.