Steahly Yamaha YZ85 02-25 YZ65 18-25 YZ250 99-01 9oz Flywheel Weight

Make your power as smooth and tractable as Randy Hawkins YZ when he won the 2004 National Enduro Championship. Reduce stalling like Jason Raines when he added a Steahly Flywheel for his 2003 and 2004 National Hare Scrambles Championships. Get predictable and reliable power like Barry Hawks GNCC Championship winning YZ 250.

Easy installation, no special tools needed, but an E-3 engine lock up tool will make it easier.

Recommended adding 11 ounces for most intermediate trail riders and less aggressive MX riders. 9 ounces for aggressive trail riders and intermediate MX riders. 13 ounces for casual trail riders or very technical terrain. 7 ounces for aggressive MX riders.

Fits under the stock plastic ignition cover without modification, however, if you have an aftermarket metal cover such as Boyesen, you will need to get the  Y-826 cover spacer.

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