2/8/23 Gear Update: There have been some recent cases of teeth crumbling on 21T DMC gears. The OEM gears sourced from Yamaha for this product have some quality issues. This concern only pertains to 21T gears as DMC has not produced any 22T or 24T gears with this inferior gear.

DMC informed me that my first shipment of the questionable 21T gears was in the beginning of November 2022. I have sold around 70 of these gears so if you received one from me between 11/1/22 and 1/30/23 it is likely the inferior gear. DMC's latest production run of 21T gears was with the original good style gears. If you received a 21T gear after 2/1/23 it would have been the original good style gear. 

The failed gears are failing early so if you have a lot of time on one it may not be defective. Regardless, DMC is suggesting you pull it. DMC would like to exchange the gear as supplies last or rework your original gear to transfer the bushing. Stock is limited on the good style gears, so we are ceasing sales of new 21T gears in order to address those that have the questionable gears that need exchanged.

Photo below compares the two gears. The top gear in photo is the questionable gear and has a gold appearance when new. The spline depth is also full depth, where as the original old style gear is not. 

The top gear bushing has been a premature wear item on the Sidewinder and requires annual upkeep. Life of the bushing varies from one sled to the next so even annual inspection is not always enough. When this bushing wear becomes too excessive the end result is often a trip ending costly repair. The bushing is much wider to better distribute the load. Barn of Parts felt this is the most robust solution on the market and would compliment our existing line of products offered to improve reliability of the Sidewinder. 

DMC also makes brass shift fork pads to replace the plastic oem pads. These pads are critical to keeping the drive cogs properly engaged. If the pads break and dislodge from the fork then the gear can float and full cog engagement is no longer present. 

Combining the DMC gear with DMC brass helps provide some much needed piece of mind for the chaincase reliability. 

Presently the DMC gears are only available for Sidewinder. Shift fork pads fit Viper & Sidewinder.

Gear Retail Price is $165

Brass Shift Pads are $40 per set