Park Tool DCW-4 Double-Ended Cone Wrench - 13 and 15mm

Specs

Sizes: 13mm and 15mm (double-ended)

Material: Nickel-plated heat-treated steel

Use: Cup-and-cone hub bearing adjustment

MPN: DCW-4

FAQ

What hub types use 13mm and 15mm cone wrenches?: The 13mm and 15mm sizes cover the most commonly used cone sizes on Shimano and other threaded cup-and-cone hubs. Front hubs typically use 13mm cones and rear hubs typically use 15mm, though this varies by hub model. Confirm your hub's cone size before ordering.

Do I need a cone wrench for sealed bearing hubs?: No. Sealed cartridge bearing hubs do not use adjustable cones and do not require cone wrenches. Cone wrenches are only needed for cup-and-cone style hubs with threaded cones and locknuts.

How many cone wrenches do I need for a hub overhaul?: You typically need two cone wrenches of the appropriate size: one to hold the cone stationary and one to tighten the locknut against it. For the DCW-4's 13mm and 15mm double-ended design, one wrench can serve both positions if the cone and locknut are both the same size, but most setups require a second wrench.

Best For

Cyclists and home mechanics servicing cup-and-cone hubs on road bikes, mountain bikes, and commuters. Essential for any hub overhaul or bearing preload adjustment on threaded cone hubs.