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KCNC Ultra 11 Tooth Derailleur Pulley

Item #: RD243Z01
USD$18.00
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Red
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KCNC Ultra 11 Tooth Derailleur Pulley

Please Note: Photo is for illustration purposes only. The pulley for sale is an 11 tooth model.

KCNC Ultra Derailleur Pulley Wheel

KCNC’s Ultra pulley wheel features a small, yet durable sealed steel cartridge bearing and dual labyrinth seal dust caps. Machined from 7075 anodized aluminum, the Ultra pulley wheel is an excellent way to shave some extra grams off your bike and increase the efficiency of your drivetrain.

  • Sold individually
  • 11T
  • 7075 anodized aluminum construction
  • 687 steel cartridge bearing
  • Weight: 6.9g
  • Compatible with Campagnolo, SRAM (road, X0, XX1), and Shimano (road and mountain) rear derailleurs.
    (Note: Stock Campagnolo 10 speed derailleurs are equipped with 10 tooth pulleys; SRAM, Shimano, and 11 speed Campagnolo are equipped with 11 tooth pulleys)
4.4 / 5.0
25 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
14
8
2
0
1
Bling for your bike
Yes, you save a few grams, and they will likely outlast OEM pulley wheels, but with accent colors and uber cool CNC machining these are like jewelry on a beautiful bike. No they are not necessary but they look soooo good.

PROS: Attractive Design

BEST USES: Road Biking, Mountain Biking, Racing
August 18, 2014
Location:
Ladysmith B.C. Canada
smooth like glass
clean looking installed in like 5min.

PROS: Durable, Easy To Install, Lightweight, Attractive Design

BEST USES: Racing, Mountain Biking, Upgrade
February 26, 2014
Location:
riverside
Great Pulley
Got the blue, it's a nice colour. Spins with little friction. Extremely easy to swap pulleys since it has sealed barrings. Doesn't seem to attract as much dirt as the plastic ones.

PROS: Attractive Design, Lightweight, Easy To Install
August 6, 2014
Location:
Ontario
Smooth!
Super smooth! Makes a cool sound as the chains runs over them. They also don't seem to attract dirt like the nylon stock pulleys.

PROS: Easy To Install, Durable, Lightweight, Attractive Design
February 15, 2013
Location:
St Petersburg,FL
Jockey Bling
I purchased these as a replacement for the saint jockeys on my freeride bike. I went for the cash green to match my theme. Install was a breeze. Shifting was improved as it is much crisper now, and let's face it, a little extra bling never hurt anybody.

PROS: Easy To Install, Attractive Design, Lightweight, Durable

BEST USES: Mountain Biking, Upgrade, Racing
November 5, 2014
Location:
Citrus Heights,Ca.
Sheds dirt build-up great on mtn bikes
Was getting excessive dirt build-up on my XTR rear derailleur pulleys. But after replacing the stock pulleys with these, I don't have that problem anymore. Dirt seems to fly off these pulleys and I'm able to ride for much longer without having to stop and clear out any build-up on the pulleys. I used to have shifting problems with the excessive dirt build-up, but not anymore. Durability is unknown at this time. I've only had these pulleys for about a month. So far, so good.

PROS: Lightweight, Easy To Install
September 23, 2015
Location:
San Diego, CA
Nice bling upgrade
Wore out the plastic Shimanos and got these. Seem to not spin as freely as the plastic jockey wheels, but don't notice once installed.

PROS: Attractive Design, Bling, Easy To Install
September 4, 2014
Location:
Huntington Beach, CA
Great Derailleur Pulley Wheels
Great product, easy to install. Noticed the difference right away. Quick delivery by JensonUSA. Picked the RED color, looks good. At this point can not comment on durability but my guess is they will stand up to heavy use

PROS: Easy To Install
May 12, 2014
Location:
Fergus, Ontario
Bearings went out within 6 months
I was originally very happy with this set that I bought about 6 months ago. They are light and look good. However after I switched to a larger cassette, I noticed the teeth were close to going into contact with the larger cog. I removed them and sure enough the diameter is slightly larger than my standard Ultegra. Then I checked the bearings and they were completely shot... Bottom line my old ultegra pulleys went straight back in (still rolling smooth after 2 years)
August 21, 2016
Location:
San Jose, CA
Great addition
Delivered on time
November 2, 2016
Location:
Asheville NC

Q & A

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Browse 3 questions Browse 3 questions and 10 answers
is this suitable for 11speed bike chain?
Gustavo on Sep 10, 2016
BEST ANSWER: Yes, the derailleur pulley is narrow and will work on an 11 speed chain.
It should work on a 12 speed chain as well.
Eric
Will this fit XTR RD-M952?
Robert on Oct 18, 2016
BEST ANSWER: Not sure it will fit XTR but it will not Fit Sram Aeroglide rear. Make sure that the bolts / screws are the same diameter not smaller on one and the other. Sram Aeroglide and Red use two different size screws to attach the derailleur to the cage.
Sent from my Verizon, Samsung Galaxy smartphone
Is there a certain way to install these pulleys? I noted the look to go a certain direction. Thanks.
Jaytwizt on Jun 22, 2016

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.