Since 2002, the Soulcraft Convert chain tensioner has set the standard for aftermarket singlespeed tensioners. Whether it’s making the podium at Singlespeed Worlds or helping you suffer at the local cross race, the Convert is the only choice for serious singlespeeders. Instead of relying on delicate springs to tension the chain, the Convert mounts solidly to your derailleur hanger and doesn’t move until you want it to. CNC’d right here in Petaluma, the Convert features a grooved urethane roller with sealed cartridge bearings for a noise free ride, and thanks to the unique Push Rod quick release feature, tool-free wheel changes and flat fixes are a breeze. No bouncing chains, no zip ties, no noise, no nonsense*.

* Will work on mountain, cross, and road bikes, but not on fixed gear or full suspension bikes, which are nonsense.




DOCUMENTS:
» Bolt Circle Measuring Diagram [pdf]
» Installation Instructions [pdf]
» Ten Most Common Setup Mistakes [pdf]

Available ratios:

Note: If you have a 4 bolt crank, its always going to be 104mm BCD unless you have a Shimano FC-M960 XTR crank, then it's a 102mm BCD, which we don't carry.
Mountain:
104 BCD 4 bolt 32T x 16T
104 BCD 4 bolt 32T x 17T
104 BCD 4 bolt 32T x 18T
104 BCD 4 bolt 32T x 20T

94 BCD 5 bolt 32T x 16T
94 BCD 5 bolt 32T x 17T
94 BCD 5 bolt 32T x 18T
94 BCD 5 bolt 32T x 20T

110 BCD 5 bolt 36T x 16T
110 BCD 5 bolt 36T x 17T
110 BCD 5 bolt 36T x 18T
110 BCD 5 bolt 36T x 20T
Road and Cross:
130 BCD 5 bolt 38T x 16T
130 BCD 5 bolt 38T x 17T
130 BCD 5 bolt 38T x 18T
130 BCD 5 bolt 38T x 20T

130 BCD 5 bolt 40T x 16T
130 BCD 5 bolt 40T x 17T
130 BCD 5 bolt 40T x 18T
130 BCD 5 bolt 40T x 20T

130 BCD 5 bolt 42T x 16T
130 BCD 5 bolt 42T x 17T
130 BCD 5 bolt 42T x 18T
130 BCD 5 bolt 42T x 20T

130 BCD 5 bolt 44T x 16T
130 BCD 5 bolt 44T x 17T
130 BCD 5 bolt 44T x 18T
130 BCD 5 bolt 44T x 20T
Now that you've decided to buy a Convert, you should take a look at our complete conversion kit. It comes with everything you’ll need to convert your geared bike into a singlespeed, which saves you the hassle of tracking down all the parts! We offer mountain, cyclocross, and road kits, and all will work with 7, 8, 9, or 10 speed Shimano compatible cassettes.

Here’s what’s included:
  • Convert chain tensioner
  • Vuelta 6061 T6 aluminum chainring (black for mountain kits, silver for road and cross kits)
  • Vuelta chrome singlespeed chainring bolts
  • Vuelta F80 silver 3/32” chain
  • Cassette-compatible steel cog
  • Soulcraft brand black anodized aluminum cog spacers
Purchase Convert or Convert Kit Now