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Steahly Off Road flywheel weight 9 oz YZ 450F 11-17

This 7 or 9 ounce flywheel weight will reduce stalling, make the power easier to use, improve traction, and improve acceleration in many situations. Fits Yamaha YZ450F 2011-2013.

Photo shows weight attached to stock rotor.

Rated 5 stars (their highest rating) by MX Action Magazine Sept 2012. "Performance-wise, the Steahly 9-ounce flywheel weight is exactly what the Yamaha YZ 450 needs."

We recommend 9 ounces for most trail riders and intermediate or slower MX riders. 7 ounces for faster, more aggressive MX riders.

This weight uses our patent pending bonding method designed for durability and reliability in high performance motorcycle engines. It can be purchased four ways:

1. Buy just the weight kit and install it yourself. Includes special epoxy for bonding.

2. Send us your stock rotor and we will install the weight for $10 (shipping not included). 

3. For an extra $150 you can buy the weight already mounted on a used OEM rotor, ready to quickly install on your bike, and you can keep your stock rotor. Availability depends on stock on hand, call.

4. Same as above, but get a $150 refund after you send us your OEM rotor (in good condition, no more than 30 days after purchase) from your bike. Availability depends on stock on hand, call.

When removing your stock flywheel use only the correct flywheel puller (Steahly part number E-63 for $19.95) or similar.

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Shipping: Calculated shipping and handling amount. Upgraded shipping available. Will ship multiple items for a reduced price. The more you buy, the more you save. All items in STOCK and shipped same or next day after payment Monday through Friday.

Payment: IF BUYING MULTIPLE ITEMS REQUEST A TOTAL BEFORE PAYING! IF YOU DO NOT REQUEST A TOTAL AND MAKE PAYMENT THERE WILL BE NO REFUND. YOU MUST REQUEST A TOTAL BEFORE PAYING. PA residents must add 6% sales tax. Always include your FULL shipping address. All payment and tracking information is automatically emailed to you. Payment expected in 5 business days. Outside of US buyers are responsible for any tax or fees your country charges you, and no item will be shipped as a gift.

Returns: 7 day return policy. No returns after 7 days from receiving item. Does not include electrical or engine parts. 20% restocking fee. Must be returned in original unopened sealed package. No returns on any opened, installed, or used part. No exceptions. Buyer pays return shipping and refund is for item price only, not shipping cost. Refund is store credit only.