650b rims

Especially for light weight issues concerning cyclocross / touring bikes & parts.

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ultimobici
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by ultimobici

Looking at various options for 650b rims. I’m curious as to what internal width rims people are running with 650b tyres for mixed surfaces.


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by Weenie


Marin
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by Marin

I'm getting 21mm internal to run 38mm Pari Motos. They will probably be as wide as my 42mm PMs on a 19mm internal rim, but the 1st combo will be much lighter :D

AZR3
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by AZR3

I have some Nextie wheels (NXT27RM30) which are like 23.4 internal/30 external and I’m running WTB Byways. So far they’ve been great, but admittedly I haven’t gone on much more than basic gravel. I’m 160-165 and run mine around 33 or so if it’s mostly gravel and a bit higher if it’s more road.

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wheelsONfire
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by wheelsONfire

I would go for 22.5-24 mm internally.
Pends on how big tires i would like to use i guess.
Wider rims make tires bulb out more which could be a problem with clearance to chainstays.
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Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire

Jowwy
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by Jowwy

I just got some wtb i25s from Planet X on a top deal - 25mm internal and running wtb horizons on them tubeless

jemima
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by jemima

Depends how wide you want to run and if the combo will fit your frame.

Funny though because I've been using a 20mm inner-width (XR-331) with 2.1" Thunderburts for quite a while.
A new 22mm-inner carbon rim build currently has a 42mm slick on!

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ultimobici
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by ultimobici

jemima wrote:Depends how wide you want to run and if the combo will fit your frame.

Funny though because I've been using a 20mm inner-width (XR-331) with 2.1" Thunderburts for quite a while.
A new 22mm-inner carbon rim build currently has a 42mm slick on!
The XR331 is the rim I have as my top choice.


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NickJHP
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by NickJHP

I just built a pair of wheels using Light Bicycle RG722 carbon rims, which are 22.5mm internal width: https://us.lightbicycle.com/shop/650b-r ... cross-rim/. I'm running Compass 48mm Switchback Hill tyres on them. They're disc brake only, though - you don't say if you're looking for rims for rim brakes or disc brakes.

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ultimobici
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by ultimobici

NickJHP wrote:I just built a pair of wheels using Light Bicycle RG722 carbon rims, which are 22.5mm internal width: https://us.lightbicycle.com/shop/650b-r ... cross-rim/. I'm running Compass 48mm Switchback Hill tyres on them. They're disc brake only, though - you don't say if you're looking for rims for rim brakes or disc brakes.
Discs all the way!

Those rims look a little pricey for the weight and not 32s. DT Swiss XR331 rims are a fraction of the cost and lighter as well as coming in 28 and 42 hole.


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NickJHP
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by NickJHP

ultimobici wrote:
Sat Jun 09, 2018 2:38 pm
Those rims look a little pricey for the weight and not 32s. DT Swiss XR331 rims are a fraction of the cost and lighter as well as coming in 28 and 42 hole.
XR331 are only 20mm internal width...and the Light Bicycle rims come in any drilling from 16h to 36h. I built mine as 24h front and 28h rear.

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wheelsONfire
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by wheelsONfire

ultimobici wrote:
Wed Jun 06, 2018 1:06 pm
Looking at various options for 650b rims. I’m curious as to what internal width rims people are running with 650b tyres for mixed surfaces.


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I'd look at DT Swiss XR 361 which is the later alu rims.
https://www.dtswiss.com/en/products/rim ... ry/xr-361/

I use them on my 650B set after managing making Ryde Trace 22 rims uneven in 2 weeks!!!
No problems what so ever with these.
I am 85Kgs without a thread. So me with shoes etc + bike is probably 95Kgs +.
Bikes:

Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire

FreaK
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by FreaK

Slightly off topic, but does anyone know of a carbon 650b rim designed for rim brakes?
it's actually possible to come to the conclusion even before realising it makes no sense at all
-
tymon_tm

by Weenie


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