Need help: Rockshox Boxxer team 27.5 rotor touches the caliper mount

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Need help: Rockshox Boxxer team 27.5 rotor touches the caliper mount
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flag UpnUp
Posted: Nov 23, 2019 at 7:12 Quote
Could someone help me out figuring what is going on ?

I have a Rockshox Boxxer team 27.5 boost (110mm)

I installed a new pair of Hope Fortus 110*20 with a hope rotor 203mm

the rotor is touching the caliper mount ...

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flag Spangoolies
Posted: Nov 23, 2019 at 9:50 Quote
Are you sure the forks are boost forks? Both boost and non boost 20mm forks use 110mm wide hubs. The only difference between boost and non boost 20mm hubs is that the spoke flanges are slightly further out, pushing the disc rotor further out. They are both 110mm wide. The only difference between boost and non boost 20mm forks are that the brake mounts are located slightly further out to allow for the disc being closer to the leg. Just because they take a 110mm hub doesn’t mean they are boost forks, 20mm hubs have always been 110mm wide. Trying to fit a boost 20mm hub on a non boost fork would result in exactly what you are experiencing
https://www.notubes.com/news/say-what-the-difference-between-20x110mm-thru-axles-and-20x110mm-boost-thru-axles-explained/
flag UpnUp
Posted: Nov 23, 2019 at 10:35 Quote
OMG I think you must be right !
So that means I need a new wheel or a new fork ...

thanks for the clarification
flag Spangoolies
Posted: Nov 23, 2019 at 11:01 Quote
No worries, sorry to be the one to give you bad news. All these changes can be a nightmare to get your head around and regularly cause us to make expensive mistakes
flag jasminov
Posted: Nov 25, 2019 at 8:54 Quote
UpnUp wrote:
So that means I need a new wheel or a new
only new hub.
flag BaGearA
Posted: Dec 1, 2019 at 7:17 Quote
dumbass mistake from my side
flag timparker
Posted: Dec 21, 2019 at 10:08 Quote
I had the same problem with Discobrakes 203mm floating rotors being too thick and rubbing at the rivet attachment, fork and frame. I bought Shimano Icetech 203s and they fit fine.
flag jasminov
Posted: Dec 22, 2019 at 10:33 Quote
BaGearA wrote:
your hub is already Boost , if you look close to the etching on the hub under the "4" it says "110" which refers to the 110mm boost hub spacing
wtf? 110 has nothing to do with BOOST.
There are boost and-non-boost 110 hubs.


photo


https://www.notubes.com/news/say-what-the-difference-between-20x110mm-thru-axles-and-20x110mm-boost-thru-axles-explained/
flag Spangoolies
Posted: Dec 22, 2019 at 11:25 Quote
Already explained this earlier. Can’t understand all the new input when the problem was already pointed out.
flag BaGearA
Posted: Dec 23, 2019 at 0:32 Quote
jasminov wrote:
BaGearA wrote:
your hub is already Boost , if you look close to the etching on the hub under the "4" it says "110" which refers to the 110mm boost hub spacing
wtf? 110 has nothing to do with BOOST.
There are boost and-non-boost 110 hubs.


photo


https://www.notubes.com/news/say-what-the-difference-between-20x110mm-thru-axles-and-20x110mm-boost-thru-axles-explained/

HOPE hubs with "110" etch are boost I never said ALL 110 hubs are boost
flag jasminov
Posted: Dec 23, 2019 at 2:19 Quote
BaGearA wrote:

HOPE hubs with "110" etch are boost I never said ALL 110 hubs are boost
once again - wtffff ??

Hope Pro 4 Front Hub - Disc - 20x110mm - black - HOP258916 - https://www.bike24.com/1.php?content=8;product=159099

Hope Pro 4 Front Hub - Disc - 20x110mm Boost - black - HOP382437 - https://www.bike24.com/1.php?content=8;product=282620
flag JayTom20
Posted: Jan 3, 2020 at 5:56 Quote
It appears in the pictures op provided, that the rivets on the floating disk are causing the issue... I recommend trying a solid disk first, maybe try "borrow" one from a friend before buying
flag junix2
Posted: Oct 17, 2021 at 9:40 Quote
UpnUp wrote:
OMG I think you must be right !
So that means I need a new wheel or a new fork ...

thanks for the clarification

No need for new wheel or fork, just put a washer in between the hub and rotor that solve my problem, i got a boost fork and bought a non boost wheelset for a bargin
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