Park Tool CRS-1 Headset Crown Race Setting System

Replacing Your Bike Headset Crown Race
Designed to work on most 1 and 1-1/8 headset/fork systems, the Park Tool CRS-1 Headset Crown Race Setting System includes six (6), specially-sized Aluminium Rings (inserts) and one (1) Universal Driver Tube for installing a bicycles headset crown race onto the forks crown race seat.

Install Safely &; Accurately
The bearing surface is spared a direct hit by using different inserts to ensure a proper fit on the race. Simply choose the correct insert (ring) then slide the Driver Tube over the fork tube and into the top end of the insert (ring). Then, using a hammer, tap firmly on the top of the Driver Tube and seat the race safely and accurately into its proper place. You'll notice the sound this creates will change as it seats.

Suits Forks Up To 340mm
The CRS-1 set includes one (1) Universal Setting Tube (Driver Tube), three (3) 1-inch inserts, and three (3) 1-1/8 inch inserts. The CRS-1 will work on forks of 340mm column length or less. Naturally being a Park Tool product you can be assured of its high-quality and long service-life potential.

Box Contents
1 x Driver Tube (Part # 830A)
1 x 1 Stepped Cup Insert (Part # 832)
1 x 1 Stepped Cup Insert (Part # 833)
1 x 1 Stepped Cup Insert (Part # 834)
1 x 1-1/8 Stepped Cup Insert (Part # 835)
1 x 1-1/8 Stepped Cup Insert (Part # 836)
1 x 1-1/8 Stepped Cup Insert (Part # 837)

When To Replace The Headset