upgrade brake track rims to disc?

Discuss light weight issues concerning road bikes & parts.
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nohands
Posts: 58
Joined: Thu Jun 18, 2015 10:00 am

by nohands

I have a set of Enve Classic 45s with a brake track lying around my house gathering dust. I'm curious if I could buy disc compatible hubs(front & rear) and upgrade the wheels to disc? is it doable or am I overlooking something?

Thx.

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Calnago
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Joined: Sun Nov 07, 2010 9:14 pm

by Calnago

Generally speaking, while you don't need the rim brake track for discs, the lacing pattern is different (can't do radial for example) and there are more spokes and the area where the spoke nipples bed in the rim needs to be beefed up for the added stresses of disc braking transferring the forces up from the hub to the rim. Some rims are ok, some not. I'd call Enve and see what they say is ok to do with the rims you have.

by Weenie


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mpulsiv
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by mpulsiv

Bare minimum spoke count for discs: 24 front and 28 rear


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L3X
Posts: 277
Joined: Wed Feb 25, 2009 8:39 pm

by L3X

Zipp & Enve both build all their disc wheels in 24/24, so looks like thats not the bare minimum.

fromtrektocolnago
Posts: 981
Joined: Sat Dec 07, 2013 10:15 pm

by fromtrektocolnago

i thought the industries first attempts at disc ready wheels were essentially modified and rebranded caliper wheels
Colnago C-59 (Dura Ace)
Firefly(Ultegra)
Trek 5200(ultegra)

nohands
Posts: 58
Joined: Thu Jun 18, 2015 10:00 am

by nohands

I received a reply back from Enve.
There is a growing interest for deeper sectioned wheels with a disc brake option. In addition to our SES 3.4 Disc wheel, we have tested our Classic wheels for this application. After testing we have approved our Classic 25, Classic 45, and Classic 65 rims in the 28 hole option with a 3X lacing pattern for this application. This hole count and lacing pattern are necessary to maintain lateral and torsional stiffness under forces exerted by disc brakes.

https://enve.zendesk.com/hc/en-us/articles/202925155-Road-Disc-Wheels-

Mine are not 28 hole sadly. :(

wowamj
Posts: 6
Joined: Thu Oct 19, 2017 9:13 am

by wowamj

I will choose disc. It is quickly stop and it is able to ride during rainning

jlok
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Joined: Tue Jun 30, 2015 3:30 am

by jlok

I could have one bike only. it has to be disc brake as I ride it sunshine or rain, and I never worried brake fade (at least for the terrain here in my area). horses for courses.

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sugarkane
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by sugarkane

mpulsiv wrote:Bare minimum spoke count for discs: 24 front and 28 rear


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actually its 24/24.. you basically wont find a road disk front hub under 24.. but for a light rider or mostly road use 24/24 is fine

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mpulsiv
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Joined: Mon Mar 24, 2014 9:17 pm

by mpulsiv

wowamj wrote:I will choose disc. It is quickly stop and it is able to ride during rainning


A reason to revive 10 months old thread with such an informative reply.
Racing is a three-dimensional high-speed chess game, involving hundreds of pieces on the board.

:arrow: CBA = Chronic Bike Addiction
:arrow: OCD = Obsessive Cycling Disorder


j_gantzer
in the industry
Posts: 70
Joined: Sun Jan 08, 2006 7:30 am

by j_gantzer

DT makes 350 centerlock hubs in 20h front.

I used them to relace my 3.4 tubulars, they have held up great.

by Weenie


joejack951
Posts: 282
Joined: Fri Feb 18, 2005 6:50 pm
Location: Wilmington, DE

by joejack951

I'll believe that disc wheels need 24/28 spokes minimum and require special rims when manufacturers start making front and rear rims for road bikes. Until then, I see no reason why any rim that you'd use on the rear of your bike (where it is subject to very similar if not harsher application of forces through the spokes as a front disc rim would be) isn't also suitable for use as a disc brake rim and the same goes for any 20 hole rear rim.

Bitex also makes some 20H front disc brake hubs, FWIW.

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