Owners of ZUUM motorcycles should measure the sprocket’s distance between the bolt holes according to
these instructions. The factory installs different hubs for the same motorcycle model, some motorcycles come with a KTM hub (150 mm bolt circle diameter) and some with a Honda hub (153 mm bolt circle diameter).
SuperLight sprocket for KTM EXC, Husqvarna, Gas Gas (JTA897)The SuperLight sprocket weighs only 280 grams (52 teeth), while the Light sprocket weighs 330 grams. The SuperLight sprocket is more durable and less likely to get clogged with mud and snow, which can also help to reduce the weight of the bike.