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Renthal 50-Tooth Aluminum Rear Sprocket for Yamaha 121U-428-50GPBU

Part Number: 12110288
RENTHAL
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SKU:
12110288
UPC:
765442087605
MPN:
121U-428-50GPBU
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.85 LBS
$104.61
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Description

A lighter rear sprocket directly translates to reduced unsprung weight, sharper acceleration, and improved handling—critical advantages whether you're racing or pushing hard on technical terrain. The Renthal 50-tooth aluminum sprocket replaces wear-prone steel with 7075-T6 aluminum that's 66% lighter while maintaining the durability needed for aggressive off-road riding. Self-cleaning tooth grooves eliminate mud accumulation that degrades performance, so you maintain consistent power transfer lap after lap.

  • Chain Size: 428
  • Tooth Count: 50
  • Material: 7075-T6 Aluminum
  • Weight Savings: 66% lighter
  • Manufacturing: CNC-machined
  • Self-Cleaning: Mud-shedding grooves
  • Finish: Blue anodized
  • Position: Rear drive
  • Fitment: Yamaha specific
  • Part Number: 121U-428-50GPBU
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Specs

MOUNTING POSITION:
REAR
MATERIAL:
7075-T6 ALUMINUM
CHAIN SIZE:
428
PRODUCT NAME:
SPROCKET
TOOTH COUNT:
50
COLOR/FINISH:
BLUE
RIDING STYLE:
OFF-ROAD
TYPE:
DRIVE
UNITS:
EACH
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Fitment

Fitment for Renthal 50-Tooth Aluminum Rear Sprocket for Yamaha 121U-428-50GPBU

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