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[Closed] Hope brake mounts and 2018 Lyriks

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[#9772719]

Very soon upgrading my venerable Yari to a nice new 2018 Lyrik. I'm running a 203 hope rotor up front with hopey brakes, so need to get a nice hope brake mount (because tartiness is key here!). My understanding is the old yari/lyrik had a 160mm PM mount, whereas the new lyrik has gone up to 180. Annoyingly this is going to mean a new brake mount I'm sure, but my questions is do I need a standard +20mm mount (so a hope 180mm) or a random weird sized 183mm?

I know there's some strangeness with rotor sizes with shimano, sram and hope and that some peoples 203mm are others 200. Wondered if anyone could shed some light on this?


 
Posted : 15/01/2018 1:05 pm
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Hope Mount H


 
Posted : 15/01/2018 1:11 pm
 edd
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I've been wondering this too. The same applies to Shimano brakes which come with 160mm, 180mm and 203mm rotors. To use a 203mm rotor on a new Lyrik/ new Pike with the 180mm post mount you'd need a 160 to 183mm (ie plus 23mm) post mount adapter. Shimano only does a 160mm to 180mm (ie plus 20mm) post mount adapter.

My suspicion is that the 3mm (1.5mm radius) won't matter and a 160 to 180 (plus 20mm) adapter will be fine.


 
Posted : 15/01/2018 1:12 pm
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In my experience the 3mm doesn't matter, but the clearances are tight enough I can see that they could do if fate decided against you.


 
Posted : 15/01/2018 1:18 pm
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Unfortunately the 3mm did matter on my new lyrik, fitted with shimano brakes and 203mm rotor. I used a standard shimano 20mm adapter but the rotor fouled the caliper, I sorted it with longer bolts and a couple of washers. When I looked into it, newer rockshox are designed for 200mm rotors (as on sram brakes) while newer fox are designed for 203mm rotors (as on shimano)


 
Posted : 15/01/2018 1:36 pm
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Hope Mount H

First of all, glad they make this one, I reckon this is the way to go and maybe get it from CRC where I can just return for the correct one if it's not right. Sadly, it seems I'm not the only one that's a bit in the dark about this. Stupid imperial/metric sizing! Once the new forks arrive (some time in Feb) i'll give this a go and post up about this. Might solve this problem in the future


 
Posted : 15/01/2018 2:13 pm
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same with warpcow, my experience says it doesn't matter, but you may get away with a washer or two


 
Posted : 15/01/2018 2:15 pm