Studio 4/2 Grevillea St. Tanah Merah 4128 (m) 0412 782 111
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$75.00 $79.95
Surly offers this very cool Singleator, which mounts onto your derailleur hanger and provides a simple, effective, and adjustable means of tensioning the excess chain slack found in vertical dropout single-speed drivetrains.
  •  Triple-sealed spring, large cog capacity and chain guides
  •  Do not use with a coaster brake, fixed gear, multi-cog or multi ring drivetrains
  •  Fully-adjustable chain line
  •  Stainless steel pivot bushing

Chain Compatibility

  • 1/2" x 1/8" & 3/32"
  • Campagnolo 10 speed
  • Shimano / SRAM 8, 9 &10 speeds

Replacement springs for those Singleators, are available in Two Versions.

  • Gold is the Pull Up Version, so it pushes the chain up towards the chain stay.
  • Silver is the Push Down Version, so it pushes the chain away from the chain stay.

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