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Renthal 309U-520-15P Ultralight Front Sprocket Chain Sprockets - 520 15-Tooth

(1998-2007, 2009-2012 Yamaha YZF-R1; 2001-2003 Yamaha FZS1000 FZ1)

Manufacturer

Picture for manufacturer Renthal

Part Number

309U-520-15P
14 reviews
Sale Price

$37.67

Estimated ship date Tuesday, November 24

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Product Details

The Renthal 309U-520-15P is a 15-tooth Ultralight front chainwheel (countershaft sprocket) designed for 520 chain pitch, offering a performance-oriented 520 conversion from a 530 chain setup. Trusted by factory motocross and supercross teams worldwide, this front sprocket delivers an exceptional combination of strength, precision, and reduced rotating mass.

Key Features:

  • 655M13 Nickel-Chrome-Molybdenum Steel Construction: Specifically developed alloy steel that is case hardened and core refined for the ultimate balance of surface hardness and core toughness
  • Ultralight Design: Surplus mass is precision-machined away, making this sprocket 10–15% lighter than OEM front sprockets while retaining maximum structural strength
  • Reduced Rotating Mass: Lower chainwheel mass allows for faster engine spin-up and shorter over-run, delivering a measurable performance advantage
  • Precision CNC Machined: Manufactured to extremely close tolerances for consistent chain engagement and long service life
  • Self-Cleaning Mud Grooves: CNC-machined grooves between each tooth on both sides allow mud and debris to flow away from chain contact points, reducing wear and extending drivetrain life
  • Chain Pitch: 520
  • Tooth Count: 15T
  • Position: Front (Countershaft)
  • Distributor Part Number: R309U52015

The Renthal 309U-520-15P Ultralight front sprocket is the choice of professional off-road and road racing teams seeking a premium drivetrain component that reduces unsprung and rotating weight without sacrificing durability.

Products specifications

Fits

1998-2007, 2009-2012 Yamaha YZF-R1; 2001-2003 Yamaha FZS1000 FZ1

Sprocket Position

Front

Sprocket Teeth

15

Distinct Name

Ultralight Front 520 Conversion Sprocket - 15T

Secondary Color

BLACK

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I like the amazon log in

They have the best prices on the net hands down. I saved 40 bucks buying through them and not only that but my item was shipped promptly. I would recommend using them i know im coming back.

Very easy site to use plus the added bonus of the free buySafe guarantee.

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very good

the delivery times are very very long but the price is right.

Easy to find what I neededpart worked perfectly.

Autoplicity gave me no hassles ever, the price dropped on the product I ordered and I just contacted BuySafe and received the difference quickly. Order was shipped same day. I will buy them over and over again! Thank you Autoplicity.

For a first time buyer the experience was great and easy to do. I see now after I ordered mt part that you want me to agree to you sending me another e-mail to make sure I'm satisfied with my order. One of the other benefits I am told it I will receive a

quick & easy, but more emails than nessesary

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