Renthal Ultralight™ rear sprockets are manufactured to extremely tight tolerances from a special material developed to withstand the rigours of supercross, motocross and enduro racing. The 7075 T6 aluminium alloy rear sprockets are 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long life. Renthal's combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased sprocket life over other brands.

With some of the biggest motocross names in the world, including Ryan Dungey, Eli Tomac, Jeffrey Herlings and Antonio Cairoli to name a few, Renthal are the number one source for providing world championship-winning sprockets to the world's fastest riders. The quality is undeniable, and the results speak for themselves; Renthal is far and above leading the way when it comes to sprocket technology and premium quality.

Features:

  • Designed to keep revolving un-sprung mass to an absolute minimum and power transfer at a maximum, Renthal Ultralight™ rear sprockets are 66% lighter than steel.
  • Each Ultralight™ Rear Sprocket that leaves Renthal's engineering facilities in the UK is individually CNC machined to the tightest possible tolerances, ensuring an accurate and reliable fit.
  • High strength specially enhanced 7075 T6 aluminium alloy is used to create the perfect rear sprocket, that is both lightweight, durable and strong.
  • Ultralight™ Rear Sprockets feature Renthal's self cleaning mud groove technology between each tooth. This prevents mud build up that traditionally leads to quicker wearing components.
  • Renthal Ultralight™ sprockets are used by more factory motocross and supercross teams than any other sprocket in the world.

Fits On:

  • TTR230 2005-2023
  • WR250F 2000-2023
  • WR250R 2007-2021
  • WR250X 2007-2017
  • WR450F 2003-2023
  • YZ125 1999-2023
  • YZ250 1999-2023
  • YZ250F 2001-2023
  • YZ250FX 2015-2023
  • YZ250X 2016-2022
  • YZ450F 2003-2023
  • YZ450FX 2016-2023