Technical > Wheels, Tyres and Brakes

Nomad Mk3 tyre clearance (size 61L)

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E-wan:
Nomad Mk3 tyre clearance (size 61L)
This may differ for other frame sizes

I am changing from a Mk2 Nomad to a Mk3 Nomad I have noticed that for my frame size at least (size 61L) tyre clearance appears more generous than stated in the Thorn literature

I have tested mounting the 27.5×2.8in version of the G-One Allround tyre on a 30mm internal width rim and there is still 6-8mm of clearance either side for the chain stays and seat stays. And more importantly it seems possible to fit these tyres with mudguards as well.


Measurements below for anyone who is interested

Rim DT HX531

27.5×2.8in version of the G-One Allround tyre
Measured as 70mm diameter when mounted on the above rims


Clearance between tyre sidewall and chainstay
6mm

Between tire sidewall and seat stay
8mm

Between tyre tread and seat stay bridge/chainstay bridge with mudguard fitted
16mm

Ewan

Danneaux:
Your efforts and photos will help a lot of people going forward, E-wan. Nice work and thanks!

Best,

Dan.

martinf:
At least partly, probably because the G-One Allround tyre isn't really 2.8 in.

In my experience, most Schwalbe tyres are smaller than advertised.

KDean:
My Ribble has 2.8" G one on the rear & it has very little tread compared to my Ritchey front tyre .

PH:

--- Quote from: E-wan on May 09, 2022, 03:27:03 pm ---I am changing from a Mk2 Nomad to a Mk3 Nomad I have noticed that for my frame size at least (size 61L) tyre clearance appears more generous than stated in the Thorn literature

Ewan

--- End quote ---

Very informative and thanks for the photos.
That difference might simply be because what people consider suitable clearance is both subjective and dependant on use. 
Hope you like the new bike, be interesting to get a comparison once you've done some miles. Was there a particular reason for the swap?

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