Ringo9
New Member
- Region
- Europe
My ebike came with 160mm front rotor (it's got 180mm at the back for some reason) which I find small for the weight, motor, speed characteristics. I want to upgrade, once, and go with 203mm.
To my surprise, the BR-MT410 2-piston calipers are extremely limited in rotor options, or so does Shimano want you to believe?
These calipers support only the so-called "WIDE" pad type, which in turn only supports specific rotors (as listed in Shimano's compatibility chart, mostly rotors on the cheap end apart from a SM-RT30 centerlock which doesn't work on my 6-bolt setup anyway) and will result in less contact area between pad and rotor. As I understand it, these pads are slightly higher than the pads on 4-pistons, and so need a larger contact area (in terms of height/contact diameter) on the rotor to work as they should.
https://productinfo.shimano.com/en/compatibility/C-461
Shimano BR-MT410 2-piston
I want to install a decent MDR-C 203mm rotor from Magura, not after top performance racing stuff but neither entry level ones, like the one in the link. I believe most non-Shimano rotors are similar anyway in how much contact area they offer to the pads, but apparently these will not work well with my caliper and pads type/shape. Is that really true? If so these must be the most pointless calipers to get on a bike: More expensive than the basic models, but a bit cheaper than full 4-pistons, still only compatible with the cheapest entry level rotors, why bother?
https://www.magura.com/en/EUR/bicycle_tuning_&_spare_parts_rotors_rotor_mdr-c/p/mdr-c
Or that's all Shimano marketing and I should go ahead and buy any aftermarket 203mm rotor?
To my surprise, the BR-MT410 2-piston calipers are extremely limited in rotor options, or so does Shimano want you to believe?
These calipers support only the so-called "WIDE" pad type, which in turn only supports specific rotors (as listed in Shimano's compatibility chart, mostly rotors on the cheap end apart from a SM-RT30 centerlock which doesn't work on my 6-bolt setup anyway) and will result in less contact area between pad and rotor. As I understand it, these pads are slightly higher than the pads on 4-pistons, and so need a larger contact area (in terms of height/contact diameter) on the rotor to work as they should.
https://productinfo.shimano.com/en/compatibility/C-461
Shimano BR-MT410 2-piston
I want to install a decent MDR-C 203mm rotor from Magura, not after top performance racing stuff but neither entry level ones, like the one in the link. I believe most non-Shimano rotors are similar anyway in how much contact area they offer to the pads, but apparently these will not work well with my caliper and pads type/shape. Is that really true? If so these must be the most pointless calipers to get on a bike: More expensive than the basic models, but a bit cheaper than full 4-pistons, still only compatible with the cheapest entry level rotors, why bother?
https://www.magura.com/en/EUR/bicycle_tuning_&_spare_parts_rotors_rotor_mdr-c/p/mdr-c
Or that's all Shimano marketing and I should go ahead and buy any aftermarket 203mm rotor?
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