How to fit a double-tee mountain bike fork?

You've just received your new double-tee fork and you don't know how to install it on your bike. MOUNTAIN BIKE ? Here's a video to help you get it right.

Time : 60 min
Level : Difficult
Tools : 5 mm Allen wrench | Cutting pliers | Saw | Fork cone shank | Star shank | Fork cone extractor | Strap | Reglet | Deburrer | Mallet | Grease | 14 mm open-end wrench for fork cone extractor | Cutting guide | Socket set with torque wrench | Degreaser | Cloth.

Steps

Remove the old fork. Beforehand, use a strap to secure it and make removal easier without risking damage.
Remove the wheel wheel.
Unscrew thebrake caliper using a 5 mm Allen key, then remove the hose clamp using wire cutters. Wrap the hose with the caliper around the handlebars in waiting position.
Remove the stem cover and top brace, then loosen the stem clamp bolts. Finally, remove the handlebars and bottom brace.
Remove the top tee by loosening the various screws (on the model in the video, 3 screws with a 4 mm Allen key).
Undo the strap, now that the fork is in place; then remove the fork.
Recover the fork cone, which is part of the headset. To do this, use the fork cone extractor we've just positioned against the lower tee.
Install the fork cone on the new fork after unscrewing the upper fork crown. To press in the fork cone, use the fork cone driver and a mallet until you hear a thud. Probikeshop tip: We take this opportunity to check and clean the headset.
Proceed to the fork blank assembly. Use the strap to secure the fork in place, paying particular attention to the cable routing so that it doesn't get in the way. Blank assembly will enable us to determine the number of spacers required and the useful pivot length. Install the top tee, the stem, then the spacers. Once you've decided on the height of the spacers, use a screwdriver or a scribe to make a mark on the fork steerer tube to mark the cut line, which will be 3 mm below this mark, in order to maintain a range of adjustment for the headset.
To make the cut, disassemble the fork again, removing the spacers, stem, top tee and fork itself in the following order
Probikeshop tip: On double-tee forks, it's possible to remove the lower tee with the steerer tube, which makes for simpler, cleaner cutting, without having a large overhang due to the weight of the fork, and protects it from any chips or filings splashed into the joints. We take this opportunity to remove the fork bumpers using a degreaser or soapy water, then remove the lower tee. Reminder: Some frames have built-in bumpers. If so, you won't need to refit them.
Cut the pivot: clamp the cutting guide in a vice and insert the pivot into the guide. Locate the mark you made earlier and cut 2 or 3 mm below it using a saw.
Probikeshop tip: Use a new blade to obtain a clean result. Then deburr the pivot with a deburrer or sandpaper.
Refit the lower tee, tightening the screws to 7 Nm with a torque wrench.
Install the fork, paying particular attention to the routing of hoses and sheaths. Put the strap in place to hold the fork in place during assembly. If necessary, fit bumpers to protect the frame in the event of a sharp turn of the handlebars.
Remove the grease from the steerer tube to improve grip, and install the top-tee, stem and spacers. Tighten for the first time.
Insert the fork star: screw the star onto the tool, then insert it into the fork steerer tube and tap with a mallet. Then remove the tool. Grease the star thread, then screw on the cover.
Remove the strap and make a first adjustment of the headset: loosen the screw on the top tee and screw in the cap to stress the assembly. The final adjustment will be made once the bike is on its wheels.
Another very important point to check: the measurement recommended by the manufacturer between the top of the lower tee and the top of the plunger tube.
Refit the caliper, then the wheel.
Proceed to final adjustment of the headset.
Run the fork through 3 to 4 compressions to ensure that it settles perfectly into place, especially the plunger on the axle. Finish locking the axle using the lever at the bottom of the right-hand plunger.