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Shimano Ice tech rotor mount question
Last Post 07/07/2013 01:13 PM by Kenny Gonzales. 7 Replies.
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longslowdistance

Posts:2881

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07/01/2013 06:33 PM
Just got some 6 bolt 160mm. The instructions show a flower-shaped washer thing that goes between the bolts and the spider. No such washer thing came with the rotor, just the bolts and some funky lockwasher things that look inspired by the legal department. Any thoughts?
Ride On

Posts:537

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07/01/2013 08:12 PM
Interesting... Not a clue but interesting
Inferno7

Posts:344

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07/01/2013 10:59 PM
Looking forward to that upgrade sometime this summer. Hopefully you can use some lock tite on the bolts and be good.
Oldfart

Posts:511

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07/01/2013 11:12 PM
You're missing a part. There should be a large plate that mates with a recess on the rotor mounting flange. Those bent bone shaped things are in addition to that and once the rotor bolts are torqued up you bend then against one side of the triangular bolt head to hold the bolt in place. I ditched mine after the rotor was on and off a bunch of times. Locktite instead.
CB2

Posts:18

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07/02/2013 06:52 AM
You are not missing a part. You should just have the rotor and tightening plates.
http://techdocs.shimano.com/media/techdocs/content/cycle/SI/SI_0095A_001/SI-0095A-001-ENG_v1_m56577569830667770.PDF
longslowdistance

Posts:2881

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07/02/2013 08:15 AM
I think I've found the answer online:
The fixing washer that I don't have came with triangle shaped bolt heads. The newer version that I have comes with the usual round head bolts but no fixing washer. But it's packaged with instructions for the older setup. That's confusing.

http://forums.mtbr.com/brake-time/shimano-ice-tech-fixing-washer-812066.html

For you tech heads:
Here's what came with the rotors, so you can see the "fixing washer" part I don't have (I think OF gets this):
http://www.shimano.com/media/techdocs/content/cycle/SI/DiskBrakeSystem/SI_8KL0A/SI-8KL0A-001-00-Eng_v1_m56577569830750014.pdf

But here's the brake set instructions, which don't show the fixing washer:
http://bike.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/BR/EV-BR-M785-F-3161C_v1_m56577569830817097.pdf
Oldfart

Posts:511

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07/02/2013 11:50 AM
Looks like they changed things. Good to know.
Gonzo Cyclist

Posts:568

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07/07/2013 01:13 PM
yeah, your good to go, just ditch the pain in the A$$ butterfly looking washers, the bolts should have loctite on them. I converted ly monocog to disc, using some of these ice tech rotors that were take offs from a Santa Cruz that we put 180's on.
How did yours look out of the box? We have had a few issues of the 160's being a little tweaked, had to straighten them, and nearly 100% of the 180's are tweaked
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