Open mold wide profile carbon wheels

Everything about building wheels, glueing tubs, etc.
TheKaiser
Posts: 482
Joined: Thu Sep 05, 2013 3:29 pm

by TheKaiser

Exar wrote:
Thu Mar 22, 2018 8:51 am
For anybody who's interested: I bought a Zipp 404 FC-inspired rim, 58mm deep clincher with dimples. Finish was good but not flawless. Weight was 500 gr. for a 24-hole rim without any decals, I had a real 20 hole 404 FC rim (for the front wheel) that weighed 535 gr. (including decals). The Chineze rim is a bit darker, the Zipp rims are actually a bit brownish, but you only really notice when it's really sunny.
That is a pretty sweet weight for a 58mm deep clincher! Where did you get those? I'd like to see the other specs, and also any reports you have on how good/bad the braking is.

by Weenie


Exar
Posts: 346
Joined: Wed Mar 01, 2006 10:28 pm
Location: The Netherlands
Contact:

by Exar

On Aliexpress (search for 'dimple rim') braking seems to be the same as the real Zipp, both in wet and dry, however since I'm in the Netherlands the longest descent I've done on them is down a tall bridge :D
Chains to the right!

MattN
Posts: 77
Joined: Mon Nov 07, 2016 10:01 pm

by MattN

Found a crack over the brake track of my legit Zipp 303 FC tubular this morning, I'm currently contacting a few repair agents but also considering rim replacement too.

Anyone have a link to a good 303 alike tubular rim, 24 hole?

Nbriles2000
Posts: 3
Joined: Sat Mar 31, 2018 4:21 am

by Nbriles2000

What's the current recommendation for a 25mm x 38mm clincher disc wheelset? I'm hoping to keep it under 1500g and maybe $500 or less, if possible.

Found some ICAN wheels on Amazon, but they seem kinda heavy

matty
Posts: 75
Joined: Sat May 12, 2007 1:43 pm

by matty

Whilst looking at the Light Bicycle RR36C02:

https://www.lightbicycle.com/Road-bicyc ... lable.html

I have been looking around for alternatives before decing and came across the following:

http://www.carbonalbike.com/carbon-road ... n-rim.html

Looks like a good alternative for disc brake use being asymmetric. Any thoughts?

They also have this which seems more like the Light Bicycle offring:

http://www.carbonalbike.com/carbon-road ... e-rim.html

But as I am after disc brake use is the asymmetric rim the better one to go for?

Then there is the question of whether to buy rims only and get build up on DT 240 here in the UK, or get the chinese wheel builder to do it.

Multebear
Posts: 978
Joined: Sat May 02, 2015 10:11 pm

by Multebear

I would only buy from chinese venders with good reputation. Farsports and Light Bicycle and maybe a couple others.

Regarding buying rims or complete wheelsets, I'd prefer to buy rims. That way you'll be able to find your own builder and the result will be accordingly.

emotive
Posts: 34
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

matty wrote:
Sun Apr 08, 2018 3:36 pm
Whilst looking at the Light Bicycle RR36C02:

https://www.lightbicycle.com/Road-bicyc ... lable.html

I have been looking around for alternatives before decing and came across the following:

http://www.carbonalbike.com/carbon-road ... n-rim.html

Looks like a good alternative for disc brake use being asymmetric. Any thoughts?

They also have this which seems more like the Light Bicycle offring:

http://www.carbonalbike.com/carbon-road ... e-rim.html

Both are only 25mm wide, so they are aero optimised for 23mm tyres. If you are running discs, and your frame has clearance, a wider rim is going to provide better support for a 25mm or 28mm tyre, and they are going to

But as I am after disc brake use is the asymmetric rim the better one to go for?

Then there is the question of whether to buy rims only and get build up on DT 240 here in the UK, or get the chinese wheel builder to do it.
Both of those Carbonal rim options are only 25mm wide. That is an optimal width for 23mm tyres. Given you have discs, you should take advantage of the clearance and run the widest tyres your frame can manage for lower rolling resistance, and smoother ride. SO I'd recommend a rim which can better support a wider tyre, and provide a better aero transition from tyre to rim. If you want a cheaper option than the LB wheels, I spotted these just last week - 28mm and 30mm width http://www.yishunbike.com/road_rims-132 ... brake-rims

marioc
Posts: 5
Joined: Sat Mar 26, 2016 2:26 pm

by marioc

Yishun rims are semi-hookless and max tire pressure is 90PSI.

emotive
Posts: 34
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

marioc wrote:
Mon Apr 09, 2018 9:22 am
Yishun rims are semi-hookless and max tire pressure is 90PSI.
Anyone using a rim with a 22C inner width is not going to be above 90psi.

A 25mm GP4000 would measure 28 to 29mm wide and and likely run 70-80psi, depending on rider weight.
A 28mm GP4000 would measure 32 to 33mm wide and and likely run 50-60psi, depending on rider weight.

AZR3
Posts: 666
Joined: Wed Sep 12, 2012 9:00 pm
Location: Az USA

by AZR3

Anyone know of a disc rim that’s 21-22mm inner/28-30mm outer and 60-65mm deep?

emotive
Posts: 34
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

AZR3 wrote:
Tue Apr 10, 2018 2:50 am
Anyone know of a disc rim that’s 21-22mm inner/28-30mm outer and 60-65mm deep?
Yishun have the deepest Disc rims with a wide profile that I have found:
55mm deep 28mm outer width, and 19C inner RSD-55C-TLR-DISC http://www.yishunbike.com/road_rims-148 ... brake-rims

They also have this in an asymmetric design (stiffer wheel build but less aero)
55mm deep, 30mm outer width, 22C inner http://www.yishunbike.com/road_rims-132 ... brake-rims

Getting closer to the Enve 4.5AR specs.

AZR3
Posts: 666
Joined: Wed Sep 12, 2012 9:00 pm
Location: Az USA

by AZR3

I just saw those and they are the closest to what I’m looking for so may end up going for them. I’ve got a couple months before I’m ready to order so hoping perhaps they’ll have a slightly deeper depth.

lwk
Posts: 69
Joined: Sun Apr 24, 2016 11:02 am

by lwk

Are there any Nextie road rim/wheels users here? How are these holding up? How’s the braking and how easy or hard are tyres to mount? Thinking of purchasing a set of their premium rims
http://www.nextie.net/premium-road-clincher

pushstart
Posts: 427
Joined: Sat Jun 16, 2012 3:12 am

by pushstart

marioc wrote:
Mon Apr 09, 2018 9:22 am
Yishun rims are semi-hookless and max tire pressure is 90PSI.
What do you mean by that? My new asymettrical 33mm-deep, 21mm-internal-width rims look "full-hookless" to me. (And the weight came in right around claimed -- 387 grams!)

by Weenie


lockxchg
Posts: 15
Joined: Sun Nov 27, 2016 7:35 pm

by lockxchg

How do you check brake track wear on these wheels? The brake track has become somewhat shiny/reflective on mine, I don't think it is a problem since they haven't used up a single set of pads yet, but I figured I would ask proactively what to look out for.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post