Excuse my ignorance.
- Thread starter stuhawk
- Start date
Whole set.
4 pot calipers need more oil to push the 4 pistons. 2 pot levers won't push enough oil as they are only designed to push 2 pistons.
4 pot calipers need more oil to push the 4 pistons. 2 pot levers won't push enough oil as they are only designed to push 2 pistons.
- Thread starter
- #3
What make and model of brake levers does it have because they might work fine with 4 piston calipers?
- Thread starter
- #5
Deore M6100 levers and 2 pots calipers with 180mm rotors front and rear.
Will work fine with, for example, Shimano BR-M6120 calipers (is what I have on my Trek Rail). Works best with BH90 hose.
- Thread starter
- #7
Great. Thanks for the help.
If your concern is stopping power, it might be cheaper to increase the size of the brake discs. Could be worth inviting comment on that.
220mm rotor for the front wheel, 203mm for the rear. (For my type of riding). New calliper spacers may be required to position the calliper brake pads correctly to the rotor(s).
The additional weight of an eMTB may require stronger brakes. Especially when everything is added up. Trail conditions, body weight, backpack, speed, weather etc.
It’s fun to go fast …but nice to slow down too.
The additional weight of an eMTB may require stronger brakes. Especially when everything is added up. Trail conditions, body weight, backpack, speed, weather etc.
It’s fun to go fast …but nice to slow down too.
What make and model calipers (2 piston?) are currently on the bike? Front and rear?
- Thread starter
- #11
Deore M6100.
Then buy a pair of MT520 or M6120 calipers (same caliper, whichever is cheapest) should bolt straight in and will transform your brakes (usually pre-bled but you might need to do a top bleed). After that as @steve_sordy says go to larger rotors.
BAh30
Active member
And no need for different levers?
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BAh30
Active member
Question: If im just changing the calipers what else do i need to do to complete the swap.
Apart from basic tools, nothing else as long as:
1. You are careful to avoid leaking brake fluid when changing the calipers.
2. You should be able to fasten the new calipers using the existing olives.
3. The calipers are pre-bled (which they normally are).
Probably worth doing a "top bleed" using the below kit (or similar) with some genuine Shimano brake fluid. It's really easy but be careful not to lose the tiny rubber O ring on the brake lever top screw and don't overtighten the screw because the threads can strip (don't ask me how I know
)Shimano Workshop TL-BR003
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BAh30
Active member
Thanks..
