Hoba

Inspired Fourplay Rear Axle Installation

37 posts in this topic

Holy shit. See those bolts you want to not snap when you're landing a gap. :unsure:

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How much is it actually rubbing by? Does the wheel not move at all or is there just a lot of friction from it? If it is the second one then you could just spin the wheel for a while and let the disc sort of eat away at the caliper. Might weaken it but it may be better then grinding down bolts a lot which could snap and leave you in a tricky position. Or carefully grind or file down the edge of the disc so it doesn't rub. Best of luck anyway.

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I think the bolt will hold better than it looks.

6 hours ago, Archie H said:

How much is it actually rubbing by? Does the wheel not move at all or is there just a lot of friction from it? If it is the second one then you could just spin the wheel for a while and let the disc sort of eat away at the caliper. Might weaken it but it may be better then grinding down bolts a lot which could snap and leave you in a tricky position. Or carefully grind or file down the edge of the disc so it doesn't rub. Best of luck anyway.

The wheel is spinning very bad, i dont think i can do that.

I found a shop in switzerland, they have a 173mm hope rotor in stock:
https://www.trendcycles.ch/shop/shop/Bremsen_HOPE_Ersatzteile/Bremsscheibe_HOPE_Trial_Zone_173mm/de/2/1722
Can i use this? Its 52 Euro without shipping :/

Another alternative is, i get myself a shimano IS to IS adaptor for a 203mm rotor and than install a normal 200mm rotor.

Edited by Hoba

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Sod paying that much for one rotor - draw it up and have it laser/water cut. Hell, you get get a dozen of them for that money :P

But yes, that should do the trick (Y)

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On 26/11/2017 at 5:36 PM, Hoba said:

a shimano IS to IS adaptor for a 203mm rotor and than install a normal 200mm rotor.

Can you get a 200mm rotor? I thought they were all 203 as standard? Would you not have the same problem but with a bigger rotor? 

One idea though is that you could get a bigger rotor and get a bespoke IS to IS adapter made up if you know someone who can do that sort of stuff. Might be easier than milling you current rotor down.

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22 minutes ago, Daviesdt said:

Can you get a 200mm rotor?

Not a shimano, but ill go with a hope 200mm trials rotor then.

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Take the caliper off, and get someone to spin the back wheel while you hold a file on the edge of the rotor. Take off just enough...

Still a bit of a bodge, but safer than filed down bolts...

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On 11/26/2017 at 8:48 AM, Ross McArthur said:

Holy shit. See those bolts you want to not snap when you're landing a gap. :unsure:

The plain (non threaded) part of the bolt hasn't changed thickness, it's the same as the minor thread diameter of the standard bolt (Y)

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Even if that was in fact "ok", there is a high chance of the calliper drifting under load and pulling itself closer to the frame, and in turn making the calliper rub.

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I guess so in theory, but in practice it doesn't shift. In my experience the bolt doesn't fit tight into the hole on the frame normally anyway, so I guess this is no different?

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Especially true in frames that have slotted IS mounts.

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Removing threads on bolts is fine so long as you don't actually reduce the shank diameter.

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