Keep your disks away from me
#26
Non omnino gravis
Likes For DrIsotope:
#27
Senior Member
Join Date: Sep 2014
Location: Northeastern MA, USA
Posts: 1,650
Bikes: Garmin/Tacx Bike Smart
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked 275 Times
in
181 Posts
Nope
The discs are rounded and smooth on the edge. I have two sets of wheels and both sets of discs couldn't cut through butter. They're just plain dull.
#28
Occam's Rotor
Join Date: Jul 2013
Posts: 7,248
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 2,331 Times
in
1,164 Posts
#29
Senior Member
Join Date: Sep 2014
Location: Northeastern MA, USA
Posts: 1,650
Bikes: Garmin/Tacx Bike Smart
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked 275 Times
in
181 Posts
Not so far
Won't the grinding between the pad and the rotor will, over time, turn a dull edge on the rotor into a sharp edge?
Imagine the rotor is a metal butter knife, and the brake pad is a sharpening stone.
Overtime with alot grinding, even the butter knife will become a katana.
Imagine the rotor is a metal butter knife, and the brake pad is a sharpening stone.
Overtime with alot grinding, even the butter knife will become a katana.
Crash
Injury
I can't explain it, so it must have been discs, even though I can't prove anything
In the meantime, I don't race and I *love* the stopping power, wet or dry.
Likes For dmanthree:
#30
Senior Member
Join Date: Jan 2010
Location: TC, MN
Posts: 39,333
Bikes: R3 Disc, Haanjo
Mentioned: 353 Post(s)
Tagged: 1 Thread(s)
Quoted: 20620 Post(s)
Liked 9,286 Times
in
4,599 Posts
Won't the grinding between the pad and the rotor will, over time, turn a dull edge on the rotor into a sharp edge?
Imagine the rotor is a metal butter knife, and the brake pad is a sharpening stone.
Overtime with alot grinding, even the butter knife will become a katana.
Imagine the rotor is a metal butter knife, and the brake pad is a sharpening stone.
Overtime with alot grinding, even the butter knife will become a katana.
Knife edges meet at an angle. Brake pads are parallel to each other.
Likes For WhyFi:
#31
Senior Member
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,534
Mentioned: 217 Post(s)
Tagged: 0 Thread(s)
Quoted: 17534 Post(s)
Liked 4,144 Times
in
3,081 Posts
Or, for that matter, go to a 1x system.
And, if you put on a 1xIGH system, then you can add a full wrap-around chain guard.

#32
Senior Member
Join Date: Jul 2015
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
I'm trying to figure out if disc brakes are a political party or a religion. We have a guy who was in an accident, was hit on his right by the left side of a disc equipped bike, has a huge gash in his calf (with pictures), saw the blood covered rotor, and all of the sudden the internet is full of people saying it didn't really happen because " my new bike has discs and I like them"... I own a chainsaw but I'm not making comments on the internet minimising others chain saw injuries...
#33
Senior Member
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,534
Mentioned: 217 Post(s)
Tagged: 0 Thread(s)
Quoted: 17534 Post(s)
Liked 4,144 Times
in
3,081 Posts
Likes For GailT:
#35
Senior Member
Join Date: Mar 2010
Location: Seattle, WA
Posts: 23,208
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 18881 Post(s)
Liked 10,640 Times
in
6,050 Posts
I'm trying to figure out if disc brakes are a political party or a religion. We have a guy who was in an accident, was hit on his right by the left side of a disc equipped bike, has a huge gash in his calf (with pictures), saw the blood covered rotor, and all of the sudden the internet is full of people saying it didn't really happen because " my new bike has discs and I like them"... I own a chainsaw but I'm not making comments on the internet minimising others chain saw injuries...
#36
Senior Member
Join Date: Sep 2014
Location: Northeastern MA, USA
Posts: 1,650
Bikes: Garmin/Tacx Bike Smart
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked 275 Times
in
181 Posts
Where?
I'm trying to figure out if disc brakes are a political party or a religion. We have a guy who was in an accident, was hit on his right by the left side of a disc equipped bike, has a huge gash in his calf (with pictures), saw the blood covered rotor, and all of the sudden the internet is full of people saying it didn't really happen because " my new bike has discs and I like them"... I own a chainsaw but I'm not making comments on the internet minimising others chain saw injuries...
#38
• —
Join Date: Jun 2015
Location: Land of Pleasant Living
Posts: 11,190
Bikes: Shmikes
Mentioned: 57 Post(s)
Tagged: 0 Thread(s)
Quoted: 9210 Post(s)
Liked 5,103 Times
in
2,721 Posts
Last edited by MoAlpha; 06-07-19 at 07:27 AM.
#39
Senior Member
Join Date: Jan 2010
Location: TC, MN
Posts: 39,333
Bikes: R3 Disc, Haanjo
Mentioned: 353 Post(s)
Tagged: 1 Thread(s)
Quoted: 20620 Post(s)
Liked 9,286 Times
in
4,599 Posts
I thought that the rider in the OP looked familiar - he's the guy that Phil Gaimon clowned in a video -
#40
Senior Member
Join Date: Oct 2017
Location: Chapel Hill NC
Posts: 1,683
Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 645 Post(s)
Liked 794 Times
in
445 Posts
I'm trying to figure out if disc brakes are a political party or a religion. We have a guy who was in an accident, was hit on his right by the left side of a disc equipped bike, has a huge gash in his calf (with pictures), saw the blood covered rotor, and all of the sudden the internet is full of people saying it didn't really happen because " my new bike has discs and I like them"... I own a chainsaw but I'm not making comments on the internet minimising others chain saw injuries...
#41
Senior Member
Join Date: Sep 2014
Location: Northeastern MA, USA
Posts: 1,650
Bikes: Garmin/Tacx Bike Smart
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked 275 Times
in
181 Posts
Heh, heh...
If you choose to watch, you can see an orange spared by the discs, but mutilated by the real threat, the front crank. You know, that sharp jagged object that protrudes below the frame but, for some strange reason, has never caused any sort of injury, but dull recessed discs that only appear on some bikes are the culprit.

#42
Occam's Rotor
Join Date: Jul 2013
Posts: 7,248
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 2,331 Times
in
1,164 Posts
If I had a choice, I think I would rather be sliced by a disc rotor than sprocketed, especially with a chain-ring that was used in conjunction with hideously carcinogenic chain-lube.
Likes For Cyclist0108:
#44
Senior Member
Join Date: Aug 2018
Location: Allen, TX
Posts: 2,420
Bikes: 2021 S-Works Turbo Creo SL, 2020 Specialized Roubaix Expert
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 724 Post(s)
Liked 3,551 Times
in
1,242 Posts
Likes For MattTheHat:
#45
Senior Member
Join Date: Jul 2015
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
From the Cyclingtips site where I read it, quoting from the riders twitter response "It's my right leg,was a right turn, rider flew up on the inside just before entry, he ripped the front brake, slid into me with speed. When I got up I saw his rear rotor and my shoe completely soaked in my blood, nothing else could have cut so clean and 4cm deep."
#46
I'm doing it wrong.
Join Date: Jun 2009
Posts: 4,875
Bikes: Rivendell Appaloosa, Rivendell Frank Jones Sr., Trek Fuel EX9, Kona Jake the Snake CR, Niner Sir9
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
Quoted: 9660 Post(s)
Liked 2,784 Times
in
1,643 Posts
I ride disc bikes but don't ride with others and don't race, so I only come at this from a curiosity perspective, but the youtube stuff I've seen hasn't really tested it like it should be tested.
#47
Senior Member
Join Date: Sep 2014
Location: Northeastern MA, USA
Posts: 1,650
Bikes: Garmin/Tacx Bike Smart
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked 275 Times
in
181 Posts
That's the pattern
From the Cyclingtips site where I read it, quoting from the riders twitter response "It's my right leg,was a right turn, rider flew up on the inside just before entry, he ripped the front brake, slid into me with speed. When I got up I saw his rear rotor and my shoe completely soaked in my blood, nothing else could have cut so clean and 4cm deep."
Except a lot of things, like the crank or rear cluster, I guess. Still not buying it.
#49
Senior Member
Join Date: Oct 2017
Location: Chapel Hill NC
Posts: 1,683
Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 645 Post(s)
Liked 794 Times
in
445 Posts
From the Cyclingtips site where I read it, quoting from the riders twitter response "It's my right leg,was a right turn, rider flew up on the inside just before entry, he ripped the front brake, slid into me with speed. When I got up I saw his rear rotor and my shoe completely soaked in my blood, nothing else could have cut so clean and 4cm deep."
Likes For f4rrest: