One small Cr-V socket for three jobs: removing Shimano MF-compatible freewheels, undoing Campagnolo cassette lockrings and servicing splined 12-tooth bottom bracket cups on older square-spindle bikes.

Highlights

  • For Shimano MF-compatible freewheels
  • For Campagnolo cassette lockrings
  • For splined 12-tooth BB cups on square-spindle systems
  • Turn with a 1/2-inch two-way ratchet or a 21mm spanner
  • Cr-V steel, 46g

Freewheels, cassettes and cups

On a threaded Shimano MF-style freewheel, the 09B3 lets you unscrew the whole freewheel from the hub. On a Campagnolo cassette it undoes the lockring that holds the sprockets on the freehub body; you'll also need a chain whip to hold the cassette while you loosen it. It also fits the splined 12-tooth cups used on some square-spindle bottom brackets.

Compatibility & fit

IceToolz lists the 09B3 for Shimano MF-compatible freewheels, Campagnolo cassettes and splined 12-tooth bottom bracket cups on square-spindle systems. Drive it with IceToolz's 1/2-inch two-way ratchet (53R4 or 43R41) or a 21mm spanner. Shimano HG-style cassette lockrings need a different tool, such as IceToolz 09C3.

Our workshop can swap a freewheel or cassette for you as part of a drivetrain install.

IceToolz covers its products with a two-year limited warranty from the date of purchase against material or manufacturing defects under normal use. Damage from improper use, accidents, abuse or modification isn't covered, and proof of purchase is required. For warranty support, return the product to Tune Cycles and we'll manage the claim with KWT Imports, IceToolz's Australian distributor.
  • Shimano MF-compatible freewheels
  • Campagnolo cassette lockrings
  • Splined 12-tooth square-spindle BB cups
  • 1/2-inch ratchet or 21mm spanner drive
  • Cr-V steel
Brand code09B3
FitsShimano MF-compatible freewheels; Campagnolo cassettes; splined 12-tooth BB cups on square-spindle systems
Drive1/2-inch two-way ratchet (IceToolz 53R4 / 43R41) or 21mm spanner
Dimensions4.3 x 2.2 x 2.2cm
Weight46g
ColourBlack
MaterialCr-V steel
SKU KWT-ZTL-FWR-09B3
Brand IceToolz
Shipping Weight 0.5000kg
Shipping Width 0.200m
Shipping Height 0.080m
Shipping Length 0.200m