Front and rear sprockets for KTM SX, SX-F, EXC and the 50, 65 and 85, from JT, Renthal, ProTaper and SPP, listed by model and year.
Full size KTMs run a 520 chain and a 13 or 14 tooth front. Rear sprockets fit by hub, so a rear listed for a KTM 125 to 500 of the right years fits the Husqvarna and GasGas of the same year too. The 85 runs a 428, the 65 a 420 and the 50 a 415.
Change the sprockets and chain together: a worn chain on a new sprocket eats it in a few rides. Going one tooth bigger on the rear gives more bottom end for tight tracks, one tooth smaller on the front does the same with less cost. Members pay the member price on every product in the store and get free standard shipping on orders over $10. Membership is $5 for the first month.
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Full size KTMs run a 520 chain and a 13 or 14 tooth front. Rear sprockets fit by hub, so a rear listed for a KTM 125 to 500 of the right years fits the Husqvarna and GasGas of the same year too. The 85 runs a 428, the 65 a 420 and the 50 a 415. The tooth count you choose is up to your gearing; the stock counts are on the listing and in your bike's manual.
Steel lasts two to three times longer and costs less; alloy is lighter and comes in colours. For a bike that gets washed and ridden every weekend, steel. Race day only, alloy.
When the teeth start to hook or the chain will not stay tight. Replace chain and both sprockets together and they will all last; new on old wears the new part out fast.
Members pay the member price shown on every sprocket, 15 percent or more under RRP, and get free standard shipping on orders over $10. Membership is $5 for the first month.
Not sure what fits? Set your bike at the top of the store and every list narrows to parts with confirmed fitment, or message us with your model and year.
