|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Min. TH = 1.5
I found "Min. TH = 1.5" on the disc brake
rotor. Does this mean I should replace it when it gets below that, i.e. below 1.5mm? According to the calipers, it is 1.8mm right now. According to the micrometer, it is 1.75mm. So that should be OK, by far, right? How thick is a brand new disc? This bike doesn't look used at all almost so I suppose it is, or is close to, 1.8mm. I know Shimano publishes very good documentation so if anyone has a PDF that'd be great to see. It is the SM-RT30-M China, 180mm. -- underground experts united http://user.it.uu.se/~embe8573 |
Ads |
#2
|
|||
|
|||
Min. TH = 1.5
Emanuel Berg wrote:
:I found "Min. TH = 1.5" on the disc brake :rotor. Does this mean I should replace it when :it gets below that, i.e. below 1.5mm? :According to the calipers, it is 1.8mm right :now. According to the micrometer, it is 1.75mm. :So that should be OK, by far, right? Yes. It's brand new. :How thick is a brand new disc? This bike :doesn't look used at all almost so I suppose it :is, or is close to, 1.8mm. 1.75 give or take a touch, depending on the particular rotor. I don't know aobut yours, sorry. -- sig 28 |
#3
|
|||
|
|||
Min. TH = 1.5
David Scheidt wrote:
1.75 give or take a touch, depending on the particular rotor. I don't know aobut yours, sorry. Well, obviously no worries, and thanks for the rest of the reply. It seems I was able to read something on the bike and understand it. Now I've Googled a bit and it seems most people have digital calipers and micrometers. Maybe I should get such as well. But I like analog stuff, in a way they are more interesting and you don't have to mess with batteries. -- underground experts united http://user.it.uu.se/~embe8573 |
#4
|
|||
|
|||
Min. TH = 1.5
Emanuel Berg writes:
David Scheidt wrote: 1.75 give or take a touch, depending on the particular rotor. I don't know aobut yours, sorry. Well, obviously no worries, and thanks for the rest of the reply. It seems I was able to read something on the bike and understand it. Now I've Googled a bit and it seems most people have digital calipers and micrometers. Maybe I should get such as well. But I like analog stuff, in a way they are more interesting and you don't have to mess with batteries. Working with digital stuff all day, I'm with you. Pierre Vernier rests easy. -- |
#5
|
|||
|
|||
Min. TH = 1.5
On 10/5/2018 11:38 AM, Radey Shouman wrote:
Emanuel Berg writes: David Scheidt wrote: 1.75 give or take a touch, depending on the particular rotor. I don't know aobut yours, sorry. Well, obviously no worries, and thanks for the rest of the reply. It seems I was able to read something on the bike and understand it. Now I've Googled a bit and it seems most people have digital calipers and micrometers. Maybe I should get such as well. But I like analog stuff, in a way they are more interesting and you don't have to mess with batteries. Working with digital stuff all day, I'm with you. Pierre Vernier rests easy. Vernier calipers are also super simple and very rugged. Our lab bought one of the first digital calipers on the market many years ago. Trouble was, it spent most of its time in the drawer. One day we pulled it out to use it and found the battery had leaked and badly corroded things. OTOH, once a person reaches a certain age, a vernier scale turns into hazy fuzz. :-( I do most of my small scale measuring with dial calipers. They're mechanical and thus a bit fragile; and indeed, I've dropped them and cracked the dial's crystal. But I can see them while wearing ordinary glasses, and they require no batteries. -- - Frank Krygowski |
#6
|
|||
|
|||
Min. TH = 1.5
Frank Krygowski writes:
On 10/5/2018 11:38 AM, Radey Shouman wrote: Emanuel Berg writes: David Scheidt wrote: 1.75 give or take a touch, depending on the particular rotor. I don't know aobut yours, sorry. Well, obviously no worries, and thanks for the rest of the reply. It seems I was able to read something on the bike and understand it. Now I've Googled a bit and it seems most people have digital calipers and micrometers. Maybe I should get such as well. But I like analog stuff, in a way they are more interesting and you don't have to mess with batteries. Working with digital stuff all day, I'm with you. Pierre Vernier rests easy. Vernier calipers are also super simple and very rugged. Our lab bought one of the first digital calipers on the market many years ago. Trouble was, it spent most of its time in the drawer. One day we pulled it out to use it and found the battery had leaked and badly corroded things. OTOH, once a person reaches a certain age, a vernier scale turns into hazy fuzz. :-( I do most of my small scale measuring with dial calipers. They're mechanical and thus a bit fragile; and indeed, I've dropped them and cracked the dial's crystal. But I can see them while wearing ordinary glasses, and they require no batteries. The truth is I'm just sentimental. When I was ten or so my Dad, and engineering professor, took a ruler, a pencil, and a sheet of paper, constructed a Vernier scale for me, and showed me how it worked. -- |
#7
|
|||
|
|||
Min. TH = 1.5
Radey Shouman wrote:
The truth is I'm just sentimental. When I was ten or so my Dad, and engineering professor, took a ruler, a pencil, and a sheet of paper, constructed a Vernier scale for me, and showed me how it worked. Learning how it works is a revelation. Which is a bit of a surprise because they are so simple! Tell it to a friend who knows nothing about tools: it will only take a couple of minutes, still, or perhaps for this reason, he/she will be delighted! -- underground experts united http://user.it.uu.se/~embe8573 |
#8
|
|||
|
|||
Min. TH = 1.5
Emanuel Berg writes:
Radey Shouman wrote: The truth is I'm just sentimental. When I was ten or so my Dad, and engineering professor, took a ruler, a pencil, and a sheet of paper, constructed a Vernier scale for me, and showed me how it worked. Learning how it works is a revelation. Which is a bit of a surprise because they are so simple! Tell it to a friend who knows nothing about tools: it will only take a couple of minutes, still, or perhaps for this reason, he/she will be delighted! I don't think *telling* me would have been memorable at all, showing is better. He did tell me the story of Archimedes running dripping and naked through the streets of Syracuse, that was memorable. -- |
#9
|
|||
|
|||
Min. TH = 1.5
Radey Shouman wrote:
Learning how it works is a revelation. Which is a bit of a surprise because they are so simple! Tell it to a friend who knows nothing about tools: it will only take a couple of minutes, still, or perhaps for this reason, he/she will be delighted! I don't think *telling* me would have been memorable at all, showing is better. C'mon, you know that's what I meant. -- underground experts united http://user.it.uu.se/~embe8573 |
#10
|
|||
|
|||
Min. TH = 1.5
Emanuel Berg writes:
Radey Shouman wrote: Learning how it works is a revelation. Which is a bit of a surprise because they are so simple! Tell it to a friend who knows nothing about tools: it will only take a couple of minutes, still, or perhaps for this reason, he/she will be delighted! I don't think *telling* me would have been memorable at all, showing is better. C'mon, you know that's what I meant. I only know what you tell me. -- |
|
Thread Tools | |
Display Modes | |
|
|