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EB17: Cycling Ceramic’s fast spinning Oversized Derailleur Pulleys

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Cycling Ceramic showed us a new set of completely made-in-France carbon and aluminum Oversized Derailleur Pulley System that they have been working on to shave even more Watts off your bike. The lightweight carbon replacement cage houses a pair of machined aluminum 16 tooth derailleur pulleys that spin on ceramic bearings to drop 2-3W from your stock drivetrain.

Oversized Pulley Wheel System

Cycling Ceramic Oversized Pulley Wheel System oversized low-friction rear derailleur replacement pulley wheels and cage Oversized Derailleur Pulley cage

At their release in just over a months time, Cycling Ceramic will have cages available to fit previous generation Shimano and current SRAM mechanical 11 speed rear derailleurs. R9100/R8000 Shimano, eTap & Campagnolo compatibility are all currently in development and should be ready early in 2018.

Beyond just increasing drivetrain efficiency thanks to the larger diameter pulleys and smooth spinning ceramic bearings, Cycling Ceramic tells us that their carbon cage construction will significantly improve derailleur stiffness for more precise shifting across the full cassette. It also has the added benefit of bringing 32T cassette compatibility to any derailleur you start with, due to the need for a slightly longer cage to accommodate those huge 16T pulleys.

The Oversized Pulley Wheel System cage will sell for 330€ as a direct bolt on replacement for your stock cage. The kit will be available with black, red or silver pulleys from October 2017.

Cycling Ceramic Oversized Pulley Wheel System oversized low-friction rear derailleur replacement pulley wheels and cage Oversized Derailleur Pulley road & TT grease bottom bracket ceramic bearings

We already covered Cycling Ceramic’s new low friction blue road & white TT grease and ceramic bottom brackets this spring, but they had them all out in a nice display case at the show with their standard 1.4W saving ceramic pulleys as well.

Racing Chain

Cycling Ceramic Oversized Pulley Wheel System oversized low-friction rear derailleur replacement pulley wheels and cage Oversized Derailleur Pulley white waxed teflon Racing Chain

Plus there was another bit of new tech to show, a new Cycling Ceramic coated racing Chain. Designed for race-only applications, Cycling Ceramic strips down a KMC chain in house and treats it with a teflon-based wax coating that they claim drops 5 Watts off a standard lubed chain – compatible with Shimano, SRAM & Campagnolo drivetrains.

The downside is that the white waxed coating lasts only for about 700km (less if raced in wet conditions), after which it will need to be lubed, losing the watt-savings benefit. All in it could still be worth it though. The 10 speed KMC X10 based chain sells for 89€ and the 11 speed KMC X11 chain for 95€. Then once the fast coating wears off you can still relube it for the rest of its regular life. Cycling Ceramic even has their own fast, traditional lube in the works.

CyclingCeramic.fr

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BMX
BMX
6 years ago

The G pulley that shimano produce has horizontal play to allow for a bit of tolerance in the derailleur alignment. How do these cope with that? Do they have to be dead on perfect alignment and take constant fiddling around with.

Shafty
Shafty
6 years ago
Reply to  BMX

It’s doubtful these have the same intentional movement. My guess is they may employ very slightly narrower teeth to accomplish the same thing, but to a lesser degree.

Why people continue to fall for these types of products is beyond me. If you’re racing at a level where minute watt savings may play even a minor role in your placing, you won’t be choosing your components anyways.

Jonathon
Jonathon
6 years ago
Reply to  Shafty

Strava KOMs

Greg
Greg
6 years ago
Reply to  BMX

Shimano doesn’t use floating upper pulleys on their 11speed derailleurs.

KB
KB
6 years ago
Reply to  Greg

They do, at least on the 105 5800. It uses a metal/metal bushing, just like the lower jockey wheel. I’ve cleaned mine enough to know.

Bogey
Bogey
6 years ago
Reply to  KB

Pretty sure 105 derailleurs are not the market for these.

Crash Bandicoot
Crash Bandicoot
6 years ago

I would love to see some objective testing of these oversized derailleur pulley systems in the wind tunnel. I think the only application where 2-3 watts at the rear der. makes a difference is a time trial but you’d think the increase in aerodynamic drag would balance out the improvements in drive train efficiency. Also I’d love to see someone test these and ceramic speeds version with the $80 KCNC branded over sized derailleur pulley systems so prevalent on eBay and the like.

Brent
Brent
6 years ago

Friction facts did, as far as I remember that’s less than 2w using the extremes values. it involves a low-tension cage (half the tension a DA cage has)

Tom
Tom
6 years ago

I have yet to hear of anyone replacing stock pulleys experiencing equally good shifting.

Sam W.
Sam W.
6 years ago

Ummmmm….you do know CyclingCeramic have just been charged for a second time for identity infringements of CeramicSpeed? They were requested by a German court to remove their booth at Eurobike this year. http://www.endurancesportswire.com/ceramicspeed-win-second-court-ruling-against-cyclingceramic-for-identity-infringements/

Albert
Albert
6 years ago
Reply to  Sam W.

I do not think so!! there are a lot of ceramic bearing brand for bicycles, every bb and bearing have same design!
Ceramicspeed is under the illusion that Ceramicspeed is Apple!

DCRacer
DCRacer
6 years ago

Also as far as the company …I ordered a BB set and a wheel bearing set this spring. Website was tough to navigate and then they sent the wrong bearings for the wheels. Horrible customer service as they simply didn’t answer. Sketchy way to spend your $ until they straighten that out.

mtb4me
mtb4me
6 years ago

chats that copy…;-)

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