41 tooth stainless steel rear cog for use with Shimano and SRAM cassettes. This is a custom made cog designed to fit behind 8, 9 or 10 speed cassettes. CNC cut for a very precise fit at the spline. Compatible with modern Shimano and SRAM 8, 9 or 10 speed cassettes and driveshells. Simple bolt on installation with existing components and minor adjustments. No cutting, grinding or drilling. Instructions and spacers are included. It has been tested with Sram and Shimano high and low normal, long and short caged, derailleurs.
Installation requires the removal of one of the smaller ( higher gear ) cogs. This can result in a minor ratio gap due to a larger than normal tooth differential. This can be avoided easily by replacing your first position cog with a 13 or 14t cog. I have both available in another listing.
If you have ever been climbing in your lowest gear combination and reached for one lower gear you will understand why I made this cog. I find that I use it quite a bit with the middle ring as well, I like the extended range in the middle ring. This can also be a good addition for 29ers, 1 and 2 front ring systems. I have 36t, and 38t cogs available in another listing.
Please see my other listings for more parts and bike tools. I always combine shipping to keep the cost down. I make every effort to ship within 24 hrs with no handling fees.
International shipping is available. Please
be aware that international shipping can include delays involving any number of
postal and or customs organizations. Delays can occur at any point within these
systems. All items are shipped within 24 hours unless otherwise noted. Once a
package has been turned over to the postal service no seller has any control or
influence over the shipment, handling or destination of any package.
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does not commit or contribute to customs fraud of any kind.
Please be aware that there are several
sellers on eBay claiming to sell MTB Tools products. They are foreign
counterfeiters attempting to defraud buyers with substandard copies of our
parts. All genuine MTB Tools products are produced in our factory in El Cajon,
CA, USA. MTB Tools products are sold only in this store and at mtbtools.com.
Check the username before you buy, if it isn’t mtbtools, you can’t be sure what
you will get.