Shimano brake with Sram rotor?
05-16-17, 06:31 AM
#1
Junior Member
Thread Starter
Join Date: May 2017
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Shimano brake with Sram rotor?
Hi, I'm new here, just wondering if I can replace my Shimano disc rotor with a Sram rotor?
I have Shimano m395 hydraulic disc brakes which came with Shimano Deore RT56 6-Bolt Disc Rotor and want to replace it with a Sram rotor but still want to keep the brakes.
I'd really appreciate any opinions from you guys.
Cheers
I have Shimano m395 hydraulic disc brakes which came with Shimano Deore RT56 6-Bolt Disc Rotor and want to replace it with a Sram rotor but still want to keep the brakes.
I'd really appreciate any opinions from you guys.
Cheers
05-16-17, 06:38 AM
#2
Senior Member
Join Date: Nov 2004
Location: Western PDX
Posts: 210
Bikes: Cannondale Synapse, Focus Izalco, Focus Mares CX, BMC GF02, Giant VT3 MTB (upgraded), Felt Brougham SS
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
As long as you get the same size and mounting type you are fine.
05-16-17, 06:57 AM
#3
Senior Member
Join Date: Aug 2008
Posts: 2,589
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Likes: 0
Liked 7 Times
in
7 Posts
What about Rotor braking area vs pad area?
different calipers often have different size (height) pads
while different rotors even with the same outer diameter, can have a braking track that is different thickness(inner radius of brake track).
Tall pads, on a thin track rotor isn't great, because the bottom edge of the pad will be grabbing the rotor 'spider' legs, which can cause noise
short pads on a thick tracked rotor isn't too great either, you're wearing out only a small part of the rotor, not taking advantage of the full area
different calipers often have different size (height) pads
while different rotors even with the same outer diameter, can have a braking track that is different thickness(inner radius of brake track).
Tall pads, on a thin track rotor isn't great, because the bottom edge of the pad will be grabbing the rotor 'spider' legs, which can cause noise
short pads on a thick tracked rotor isn't too great either, you're wearing out only a small part of the rotor, not taking advantage of the full area
Last edited by xenologer; 05-16-17 at 07:00 AM.
05-16-17, 07:06 AM
#4
Senior member
Join Date: Oct 2004
Location: Oakville Ontario
Posts: 7,825
Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 797 Post(s)
Liked 396 Times
in
226 Posts
Originally Posted by xenologer
What about Rotor braking area vs pad area?
different calipers often have different size (height) pads
while different rotors even with the same outer diameter, can have a braking track that is different thickness(inner radius of brake track).
Tall pads, on a thin track rotor isn't great, because the bottom edge of the pad will be grabbing the rotor 'spider' legs, which can cause noise
short pads on a thick tracked rotor isn't too great either, you're wearing out only a small part of the rotor, not taking advantage of the full area
different calipers often have different size (height) pads
while different rotors even with the same outer diameter, can have a braking track that is different thickness(inner radius of brake track).
Tall pads, on a thin track rotor isn't great, because the bottom edge of the pad will be grabbing the rotor 'spider' legs, which can cause noise
short pads on a thick tracked rotor isn't too great either, you're wearing out only a small part of the rotor, not taking advantage of the full area
I've mixed rotor and caliper brands with no issues as long as this matter is addressed.
05-16-17, 07:35 AM
#5
Senior Member
Join Date: Aug 2006
Posts: 1,864
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 166 Post(s)
Likes: 0
Liked 52 Times
in
41 Posts
Shimano makes brakes that use 'wide' pads and brakes that use 'narrow' pads, they also make 'wide' and 'narrow' rotors to match the pads.
https://productinfo.shimano.com/#/com...460&acid=C-461
Avid/SRAM also makes brakes that use 'wide' pads and brakes that use 'narrow' pads.
Of the Avid/SRAM rotors, the old G2 would have the widest braking area, it matches up with the 'wide' pads of the BB7/BB5 brakes, most Avid/SRAM brakes use narrower pads then what the BB7/BB5 use.
Wide pads and narrow rotors can work together but they aren't what you would call a good match for each other.
https://productinfo.shimano.com/#/com...460&acid=C-461
Avid/SRAM also makes brakes that use 'wide' pads and brakes that use 'narrow' pads.
Of the Avid/SRAM rotors, the old G2 would have the widest braking area, it matches up with the 'wide' pads of the BB7/BB5 brakes, most Avid/SRAM brakes use narrower pads then what the BB7/BB5 use.
Wide pads and narrow rotors can work together but they aren't what you would call a good match for each other.
05-16-17, 11:28 AM
#6
Senior Member
Join Date: May 2014
Location: Singapore
Posts: 470
Bikes: Voodoo Hoodoo, Linus Libertine
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 106 Post(s)
Likes: 0
Liked 15 Times
in
9 Posts
Just shim your caliper mounting position (for post mount type) with 6mm washers to perfectly align the brake pads to the rotor.
05-16-17, 12:19 PM
#7
Senior Member
Join Date: Aug 2006
Posts: 1,864
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 166 Post(s)
Likes: 0
Liked 52 Times
in
41 Posts
Originally Posted by hermanchauw
Just shim your caliper mounting position (for post mount type) with 6mm washers to perfectly align the brake pads to the rotor.
05-16-17, 07:12 PM
#9
Senior Member
Join Date: Aug 2008
Posts: 2,589
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Likes: 0
Liked 7 Times
in
7 Posts
The Brake track on my SRAM Centerlines, measures at 15mm tall.
Go measure the Shimano Pads, if they are also 15mm tall, then in theory it can be made to work, assuming matching adaptor and rotor diameter and possible shimming to make the pads center (radius-wise) on that track.
if they are more than 15mm tall, you may have issues with the pad overhanging the brake surface -either below into the spider legs, or above off the outer edge.
Go measure the Shimano Pads, if they are also 15mm tall, then in theory it can be made to work, assuming matching adaptor and rotor diameter and possible shimming to make the pads center (radius-wise) on that track.
if they are more than 15mm tall, you may have issues with the pad overhanging the brake surface -either below into the spider legs, or above off the outer edge.
05-16-17, 08:26 PM
#10
Senior Member
Join Date: Nov 2004
Location: Western PDX
Posts: 210
Bikes: Cannondale Synapse, Focus Izalco, Focus Mares CX, BMC GF02, Giant VT3 MTB (upgraded), Felt Brougham SS
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I've had a few different brands without an issue, apparently I kept to the same or at least similar sizes...
