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Vortex · D.I.D

Chain & Sprockets

Sprockets matched to your bike, year by year, and sealed chains by pitch and length. Stock gearing, a change of gearing, or a chain conversion.

Find parts for your bike How gearing works

Checked bike by bike

Every sprocket is matched to your bike and model years, with the stock tooth counts shown, before it goes on the site.

Chains by pitch and length

A chain is chosen by pitch and link count, not by bike model. Count the links on your chain or check your owner's manual.

Change them together

A new chain on worn sprockets wears out quickly, and so do new sprockets on an old chain. Replace the chain and both sprockets as a set.

Shop

Shop by part

Conversion Kits520 front and rear sprockets at your bike's stock gearing plus a D.I.D X-ring chain, matched for you. Price is the sum of the parts. SprocketsFront and rear, steel and aluminum, from Vortex. Pick your bike to see what fits; each listing shows its stock tooth counts. ChainsD.I.D sealed X-ring chain, by pitch and link count, with clip or rivet master link.

Choosing sprockets

How gearing works

Sprockets set your gearing. Keep the stock tooth counts and the bike rides the way it left the factory, or change them to make it pull harder or cruise easier.

Harder pull

One tooth fewer at the front, or a couple more at the rear. The bike pulls harder out of corners and lifts the front sooner, at the cost of top speed and higher revs on the highway.

Easier cruise

One tooth more at the front, or fewer at the rear. Lower revs at highway speed and a calmer pull, at the cost of acceleration.

Changing tooth counts changes your speedometer reading on most bikes, and may need a different chain length.

520, 525 or 530?

The number is the chain's pitch and width. A chain and both sprockets must share it, and every sprocket listing names its pitch in the title.

520: The narrowest of the three, and the size most race and track bikes run.
525: The stock size on many middleweight and liter sportbikes.
530: The widest, stock on some older and heavier bikes.
Conversions: Front sprocket, rear sprocket and chain all changed to a new size together, most often to 520. When you shop by bike, parts that fit only after a conversion are shown separately, under the parts that fit your stock drive.

Choosing a chain

The chain carries all of the engine's power to the rear wheel. A worn one stretches, kinks and loses its lubrication, and you feel it as a snatchy drive on and off the throttle long before it lets go.

Sealed: O-ring and X-ring chains keep grease sealed inside every link, which is why they last far longer on the street than non-sealed chains.
Master link: We recommend a rivet-type master link on any street bike. You'll need a riveting tool, which we sell in the shop, or we can install the chain for you.
Length: Chains are sold by link count. Count your current chain, or check your owner's manual for the stock length. A gearing change can change it.