helo, 2 questions since I'm new to biking community with a new bike but familiar with the tinkering and modifying.

  1. What tool do u use for the seatpost? I have never encountered this type to remove it.
  2. For the disc brake, I have been reading u guys have a special tool to get the torque right? Well, these Torx bolts are REALLLY jammed in there. I just have a screwdriver with Torx bits which won't budge them. I'm just thinking there's a tool that can get them out AND have them bolt in with the just enough Newtons?

I just don't know the search terms. If you guys can help me out, that would be splendid.

Thank you.

by suraflux

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4 Comments

  1. Seatpost first: Use an allen wrench, probably 5mm, from the bottom of the rear bolt and from the top of the front one, it will need to be long enough to fit through the hole in the seat.

  2. MedicalRow3899 on

    I can’t speak to the saddle bolts. For your disc brake you’ll likely need two tools. One sturdy Torx tool to *remove* the bolts, and then a good quality torque wrench to *tighten* the bolts to spec. You never use a torque wrench to *remove* bolts, or else you may damage it.

    If you’re looking for a torque wrench set, I purchased this inexpensive set a few years ago when I got my first carbon bike. It has held up very well. https://a.co/d/f3vZEAB

  3. The front bolt on your seatpost is intended to be adjusted with your fingers while the rear bolt is not tight. The rear bolt is going to use a 5mm hex key.

    On your disc rotors, a Torx T-25 bit and something with enough leverage to turn it. Park Tool makes the PH-T25 [https://www.parktool.com/en-us/product/t25-p-handle-torx-compatible-wrench-ph-t25](https://www.parktool.com/en-us/product/t25-p-handle-torx-compatible-wrench-ph-t25) or you can just use a T25 bit or tool from anywhere. If you want to fasten them to a specific torque, a torque wrench equipped with a T25 bit will do that. In the bigger picture, are you trying to remove the rotors on your new bike for any specific reason, like a broken spoke or ???

  4. 2. Try using leverage by using ratchet or small breaker bar (1/4″ or 3/8″ square drive) attached with a torx bit at the end of it. You can also try using an impact screwdriver (less recommended). If you have a torx wrench in the same shape as an allen wrench, you can use a pair of pliers to add leverage to it. Or if you only have a torx screwdriver, try using a glove or cover the handle with a rag to add extra grip. If the screwdriver has a hole to hang it, you can try inserting a wrench or other screwdrivers into it to add leverage.

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