What headset wrench do I need?
If you have an older 1″ headset, you’ll need a set of 32mm spanner wrenches. Larger 1 1/8″ headsets usually require a set of 36mm spanner wrenches.
What size are headset nuts?
Threaded headset sizes are designated by the outer diameter of the steering column. This can seem confusing, because the head cups do not measure the named standard. The threaded standards are 1 inch, 1-1/8 inch, and 1-1/4 inch headsets.
What is a headset wrench?
Park Tool HCW-15 Bicycle Headset Wrench – 32mm/36mm. The Park Tool HCW-15 is a purpose-built wrench for the installation, removal, and adjustment of threaded bicycle headsets. Waiting until the wrench is heat treated eliminates shrinkage and expansion of the steel after the wrench is sized.
What size is a headset spanner?
Headset Wrench – 30mm/32mm.
How do I know what size my bike headset is?
You need to measure it in two places. The outside diameter (OD) of the top section (where the stem clamps around, as in the above pic) and the outside diameter of the very bottom bit where the steerer goes into the fork crown (where the headset crown race sits, as in the pic below).
How does a threaded headset work?
HOW DOES A THREADED HEADSET WORK? A threaded headset works with a threaded fork fitting the frame into which it will be installed. A threaded top race screws onto the fork threads, then tightens onto the bearings which are either caged in a retainer or run free in the race.
What are bike cone wrenches used for?
A cone wrench or cone spanner is a tool used in bicycle assembly and maintenance to adjust the cones of cup and cone bearings. Cone wrenches are thinner and lighter than most other open ended wrenches that are used to work on bicycles.