Rounding off Edges on Ice-Tech Disc Brake Rotors
buckmulligan
Posts: 1,031
After gouging my hand for the third time whilst cleaning my bike, I'm looking to round off the edges of my Shimano disc brake rotors. They're Shimano RT99 Ice-Tech rotors with an aluminium core sanwiched by two plates of steel that make up the braking surfaces. Can I just go at the edges gently with a light file, or am I going to be running the risk of the rotor delaminating? I'm a bit wary given the forces and heat that they're subjected to so just wondering if anyone else has already done something similar?
As a side-note I can totally see the protests from the pro peloton regarding the safety of discs. I've cut myself three times on them now, all in very inocuous circumstances; the latest was a light brush of my hand whilst I was cleaning my chainstay and it still took a chunk of skin out! I've no doubt that some discs are safe, but on my two in particular, the edges seems extremely sharp and the aluminium core is ever-so-slightly recessed, making the outer steel plates slightly more prominent and dangerous.
As a side-note I can totally see the protests from the pro peloton regarding the safety of discs. I've cut myself three times on them now, all in very inocuous circumstances; the latest was a light brush of my hand whilst I was cleaning my chainstay and it still took a chunk of skin out! I've no doubt that some discs are safe, but on my two in particular, the edges seems extremely sharp and the aluminium core is ever-so-slightly recessed, making the outer steel plates slightly more prominent and dangerous.
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I think the pro rules only allow rounded off discs.0
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They do now, they didn't when Fran Ventoso's leg was gouged open.0
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BuckMulligan wrote:They do now, they didn't when Fran Ventoso's leg was gouged open.
Which was never demonstrated to be a disc brake...
I've never damaged my hand on my discs but I have on my chain rings.
Personally, I wouldn't mess with rounding off on Ice-Tech rotor except gently running some Wet&Dry around the corners to dull them if you think they are sharp.ROAD < Scott Foil HMX Di2, Volagi Liscio Di2, Jamis Renegade Elite Di2, Cube Reaction Race > ROUGH0 -
BuckMulligan wrote:I've no doubt that some discs are safe,.
to be fair ... ALL discs are safe ... it sounds like you however are not !!!!
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Thanks guys, all very helpful replies!0
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I think we can all learn from this, cleaning bikes is dangerous so I will continue to avoid doing so.BuckMulligan wrote:I've cut myself three times on them now, all in very inocuous circumstances; the latest was a light brush of my hand whilst I was cleaning my chainstay and it still took a chunk of skin out!0 -
I am already there. Some else can spill blood cleaning mine.http://www.thecycleclinic.co.uk -wheel building and other stuff.0
