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Renthal 39T Ultralight Rear Sprocket for Yamaha YFM250R YFM700R YFZ450 YFZ450X 437U-520-39GBSI

Part Number: 12110098
RENTHAL
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SKU:
12110098
UPC:
765442067546
MPN:
437U-520-39GBSI
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.50 LBS
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$99.82

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Description

Rotational mass directly impacts acceleration and handling—every gram counts when you're pushing performance limits. The Renthal 39T Ultralight Rear Sprocket cuts weight by roughly 66% compared to steel, delivering noticeable improvements in throttle response and chassis agility without sacrificing durability. CNC-machined from 7075-T6 aluminum with self-cleaning mud grooves, this sprocket maintains consistent traction while resisting wear and corrosion across demanding riding conditions.

  • Tooth Count: 39T
  • Chain Pitch: 520
  • Material: 7075-T6 aluminum
  • Weight Reduction: ~66% lighter
  • Finish: Anodized silver
  • Construction: CNC-machined
  • Self-Cleaning: Mud grooves per tooth
  • Corrosion Resistance: Anodized coating
  • Fitment: Yamaha YFM250R, YFM700R, YFZ450, YFZ450X
  • Installation: Bolt-on
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Specs

MOUNTING POSITION:
REAR
UNITS:
EACH
PRODUCT NAME:
SPROCKET
COLOR/FINISH:
SILVER
RIDING STYLE:
ATV
CHAIN SIZE:
520
MATERIAL:
ALUMINUM
TOOTH COUNT:
39
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Fitment

Fitment for Renthal 39T Ultralight Rear Sprocket for Yamaha YFM250R YFM700R YFZ450 YFZ450X 437U-520-39GBSI

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