Park Tool HCW-17 Fixed-Gear Lockring Wrench D4 Minimal effort required to upshift

Minimal effort required to upshift from internal ring to external

Giro made this helmet with the Roc-Loc adjustment system so that you can customise the fit to suit your needs and you can also remove the visor to suit your own riding style

Designed to work with an XDR driver body

who can’t use extra tire levers

Tailored for daily miles yet robust enough for serious training

Park Tool HCW-17 Fixed-Gear Lockring Wrench D4 Minimal effort required to upshiftThe Park Tool HCW 17 removes and installs externally notched lockrings, which are found on fixed gear rear cogs, single speed cassette hubs, adjustable cup and cone bottom brackets, and some mid drive e bike motor lockrings including Bafang BBSH & BBS02. The HCW 17 features two hooks with different radii for a precise fit on a wide range of lockrings. Constructed from spring steel and nickel plated for a lifetime of use. Features Fixed gear lockrings