IceToolz Crown Race Remover

Product Information

If possible, disconnect cables shift and brake levers. Loosen stem and remove bars and stem from steering column. NOTE: If you are not removing bars completely, use care not to kink or damage housing when hanging bars on bike. After crown race has been pulled, loosen plunger assemblies and remove the CRP-1 and the crown race from the fork. The fork steerer is 1 inch in diameter. Steerer length is specific to the size of the bike into which it is installed. HOW DOES A THREADED HEADSET WORK? It is also possible to replace retainer ball bearings with loose bearings. Grease cups to hold bearings, and place balls into cup shaped races. Leave a wide gap the size of two ball bearings, do not attempt to fully fill cup.

A star fangled nut setter is one of the smaller headset specific tools that is worth purchasing if you regularly work on bikes. If you only need it once every few years, it’s likely better to take the fork to a bike shop. Well, you’d need another connection with a design and printing company, get a set made. Applying the decals takes a skilled worker less than five minutes. Having dealings with a paint shop in Taiwan is handy. You can usually convince the owner to do a custom job for you. Matching the Nishiki’s color is no problem. And it’s monochrome. No two or more color combos to complicate the spray. Tighten handles of both plunger assemblies evenly until blades begin to wedge under the crown race. Threads of plunger assemblies should be approximately equal relative to outer shell. Continue to tighten the handles of the plunger assemblies until the edges of the blades are snug under crown race. Do not over tighten.

Documentation

Put the fork on a wooden plank/surface, so it doesn’t get scratched or damaged. An old towel can be added beneath – just in case. The bike is a Christmas present and so will not see any use for about 5 weeks as we are in November now.

When rotating the screwdriver, the race should be lifted by far less than 1 mm. Go gently, patiently. The goal is to lift the race as parallelly to the crown as possible, in small increments. After there is enough room to use a larger screwdriver, repeat the process, going around with a larger flat-bladed screwdriver. Again, lift by just a little, at 8 to 10 different places all around the fork.Headset bearing races are held by an interference fit into the head tube. An interference fit occurs when parts are held together by internal and external surfaces forced together. There must be a slight diameter difference between the two pressed surfaces. Typically, the pressed headset race outside diameter should be between 0.1mm and 0.25mm larger than the head tube inside diameter. When the cups are pressed, the head tube will flex and enlarge slightly to allow the cups to press. This tension is what keeps the cups tight in the frame. Mounting a new headset will be explained in a separate article. Now, just a note: after placing a new fork crown race, clean all the excess mounting paste so it doesn’t get mixed with bearing grease. The result is even better when you add an attractive new stem. There is still much work to be done on this bike however.