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  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley
  • gearoop 4.7mm Variation Pulley

gearoop 4.7mm Variation Pulley


USD$ 12.00

Price match this item and get a free gift!

For Shimano or SRAM series.
4.7mm shift for longer chain, for big ChainRing to big Freewheel, for make oversize pulley on small cage.Read more »
Option Price Basket
Black, 14T
In Stock

USD $42.90
Red, 14T
In Stock

USD $12.00
Gold, 14T
In Stock

USD $12.00
Black, 16T
In Stock

USD $42.90
Gold, 16T
In Stock

USD $12.00
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gearoop >>>> To boldly try where no man has gone before~~

[4.7mm Variation Pulley]

After Variating.....

For longer chain~~ and then you can do big to big.

For longer chain~~ and then you can do bigger Free Wheel.

[OverSized Pulley 14T / 16T]

Usually you have to purchase a new derailleur Cage if you want OverSized Pulley.

After Variating.....

You could put 14T or 16T into the original cage.

16T for R8000. 9100.
14T for the others.

Make your OverSized dream come true!!!


Made in Taiwan
 ~~ Make a better Cycling Life,Forward with gearoop~~

About gearoop

Brand starts as 2014, and the first production CoolStand was launched in 2009.
Before 2009, we focused on mold’s design/produce and CNC milling for 30 years experience. Manufacturing cycling pars, motor parts, hand tool parts, and so on. Designing and producing press die and forge mold. We are WOEI FANG (WF)
Between 2009 to 2014, we started to design/ produce/ sell cycling accessory base on years experience and ability. In this period, we had done it as WF, and earned more experiences and opportunity from global. We.. entered this world, not just in Taiwan.
In 2014, gearoop was created and keep going, and please allow me showing gearoop to you.
Make a better cycling life. Forward with gearoop.
  • For Shimano or SRAM rear derailleur
  • Material: Al 6061
  • Bearing material: steel
  • Make the oversize pulley on original derailleur cage come true. You don't have to switch the whole cage to make oversize. Make more space for longer chain to do big chainring to big freewheel
  • Made in Taiwan

Items can be returned up to 90 days from the date of purchase. The returned merchandise must be in new condition and include all the original packaging.
See also "Returns & Warranty"

Delivery Service:
Some items on our website automatically qualify for free shipping irrespective of the order value. You can identify those items by the 'FREE SHIPPING'(SPECIAL ITEM) deal tag on that item's product page. We have an agreement with the supplier of these items so that they are shipped directly from that supplier's warehouse and we cover the costs of shipping for you. Other items in your basket that aren't marked with this tag will be shipped from our own warehouses.
For more information please see our shipping information page.
If you have any questions about shipping, please email us at and we will be happy answer your questions.

When you receive the goods, please check them as soon as possible. If you discover a manufacturing defect, please contact us for a replacement.
See "Returns & Warranty."
If you have questions regarding ordering, methods of payment, merchandise returns and shipping methods, please refer to the "Customer Support Center."

70% reviewers would recommend this product.









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