Open mold wide profile carbon wheels

Everything about building wheels, glueing tubs, etc.
Hexsense
Posts: 518
Joined: Wed Dec 30, 2015 12:41 am

by Hexsense

wow, sorry to hear that. Will you still ship them the rim?
That remove Farsport from my "also consider" list for sure.

So for now from my experience, viable choices are:
Light-Bicycle (1 rim and 2 complete wheels): Brillient, my top spot for under a grand wheelset. Getting better brake track that perform great in wet is the only reason i see for spend more to buy Zipp, Mavic, Enve etc. (which for disc brake then i don't see a point buying anything more expensive)
Venn (1 rim of Venn 507 TCC): finishing is not as neat as Light-Bicycle but fine overall.
Yoeleo (2 pair of my friends): also good but not very wide.

by Weenie


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cendres
Posts: 100
Joined: Sat Feb 26, 2005 10:24 pm
Location: Minnesota
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by cendres

Hexsense wrote:
Wed Jul 04, 2018 3:24 am
wow, sorry to hear that. Will you still ship them the rim?
That remove Farsport from my "also consider" list for sure.
No. I'm not spending any more energy (beyond this cautionary tale) or money on this fiasco. I'm just going to take the hit. Maybe I'll cut them up and make a wind chime.

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Beaver
Posts: 501
Joined: Wed Aug 18, 2004 6:06 pm
Location: Lower Saxony - Germany

by Beaver

The Hollowgram Knot 64 could be the new aero king, for sure in high yaw angles. 21mm inside, 32mm outside, so with 29mm real tire width, still 110% rim width. :D

Image

Depending on rim width at the brake track, these could be too wide even for my TRP brakes - if they were availiable as non disc... ;)

And they have to pay a licence fee to HED for the patented rim shape. ;) http://aerogeeks.com/wp-content/uploads ... t-Full.pdf

clonefan
Posts: 3
Joined: Mon Jul 16, 2018 7:12 pm

by clonefan

I was planning to get a pair of Light Bicycle 46mm deep rims but now I'm wondering if I should get their new 56mm deep ones. I'll be using 25mm 4000sII tires, will they be too wide for the 56mm rims in the front? Would I be better off with the 46mm in the front and 56mm in the back?

Marin
Posts: 3004
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

clonefan wrote:
Mon Jul 16, 2018 7:34 pm
25mm 4000sII tires, will they be too wide for the 56mm rims
It's the rim width that's important, not the height.

emotive
Posts: 87
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

clonefan wrote:
Mon Jul 16, 2018 7:34 pm
I was planning to get a pair of Light Bicycle 46mm deep rims but now I'm wondering if I should get their new 56mm deep ones. I'll be using 25mm 4000sII tires, will they be too wide for the 56mm rims in the front? Would I be better off with the 46mm in the front and 56mm in the back?
Yep, the 30mm wide wheel will be better.

On the 46mm rims (28mm outer, 22mm inner) the GP4000II in 25mm will measure about 29.5mm wide, At high yew angles the wind will catch the side of the tyre.
On the 56mm rims (30mm outer, 23mm inner) the GP4000II in 25mm will measure about 30mm wide and be a better aero match for the wheel.

For ideal aero, you want the front wheel width to be 105% of the tyre width.

On the 46mm rims (28mm outer, 22mm inner) a GP4000II in 23mm will measure about 27.5mm wide,
On the 56mm rims (30mm outer, 23mm inner) a GP4000II in 23mm will measure about 28mm wide

bilwit
Posts: 932
Joined: Sun Apr 03, 2016 5:49 am
Location: Seattle, WA

by bilwit

emotive wrote:
Tue Jul 17, 2018 11:01 am
clonefan wrote:
Mon Jul 16, 2018 7:34 pm
I was planning to get a pair of Light Bicycle 46mm deep rims but now I'm wondering if I should get their new 56mm deep ones. I'll be using 25mm 4000sII tires, will they be too wide for the 56mm rims in the front? Would I be better off with the 46mm in the front and 56mm in the back?
Yep, the 30mm wide wheel will be better.

On the 46mm rims (28mm outer, 22mm inner) the GP4000II in 25mm will measure about 29.5mm wide, At high yew angles the wind will catch the side of the tyre.
On the 56mm rims (30mm outer, 23mm inner) the GP4000II in 25mm will measure about 30mm wide and be a better aero match for the wheel.

For ideal aero, you want the front wheel width to be 105% of the tyre width.

On the 46mm rims (28mm outer, 22mm inner) a GP4000II in 23mm will measure about 27.5mm wide,
On the 56mm rims (30mm outer, 23mm inner) a GP4000II in 23mm will measure about 28mm wide
I have 25mm GPS4KS2 on my 21mm internal/28mm external light-bicycle rims and they come out 28mm bang on at ~70psi.

clonefan
Posts: 3
Joined: Mon Jul 16, 2018 7:12 pm

by clonefan

How do you like the 46mm LB wheels? If you were buying today would you get the 56mm ones?

Jugi
Posts: 134
Joined: Sun Jun 24, 2018 8:10 am

by Jugi

I ordered a pair of RR56C02s last week, based on:

- More concerned about aerodynamics than weight. I mean I want a light wheelset, but 40-50 grams less isn’t much in my opinion.
- Definetly wanted to use 25mm front and 28mm rear tire, and not suffer greatly with reduced aerodynamics if I want to use a 28mm in front as well.
- Definetly wanted to go tubeless. If I wanted to use tubes, 46mm rims with 23/25mm tires would most likely been my choice.

clonefan
Posts: 3
Joined: Mon Jul 16, 2018 7:12 pm

by clonefan

What kind of hubs/spokes/nipples did you go with?

AJS914
Posts: 2261
Joined: Tue Jan 28, 2014 6:52 pm

by AJS914

I just moved to NM and it's mostly flat around here with a few gradual climbs so I'm thinking of carbon clinchers. Since there are no mountains I'm not going to worry about over heating rims.

Reading the last 30 pages or so of this topic, it seems like Light Bicycle is the current favorite on the forum. How is Farsports these days? I only see one recent post and it was about a poor QC issue.

Any opinions about the Venn Alter 44?

https://www.probikekit.com/bicycle-whee ... 87611.html

Jugi
Posts: 134
Joined: Sun Jun 24, 2018 8:10 am

by Jugi

clonefan wrote:
Tue Jul 17, 2018 7:40 pm
What kind of hubs/spokes/nipples did you go with?
DT Swiss 240s straightpull, 24h front and 28h rear. This is a disc brake build. 24h in rear would have been perfectly fine, but I already had that rear hub around (originally for an MTB wheelset). Sapim CX-Ray spokes. Sapim’s double square nipples and nipple washers for an easy build and trouble free truing. Set weight should be about 1525g, not including valves, rim tape, brake discs etc.

emotive
Posts: 87
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

clonefan wrote:
Tue Jul 17, 2018 7:10 pm
How do you like the 46mm LB wheels? If you were buying today would you get the 56mm ones?
EDIT: I have the 36mm with hookless 22mm inner, and yes, I would go for the 56 if I was buying now, purely for the extra width..

alexdi
Posts: 12
Joined: Tue Dec 20, 2016 5:38 pm

by alexdi

Back in June, I bought a set of Yishun ASD55C TLR-DISC wheels (DT350 CL SP 24/24, Pillar 1420). Cost was about $670. Time from order to delivery was 1 month, including a 2-week delay at the outset because the rims weren't in stock.

The box was delivered with a rear hub endcap protruding from the side with a few scrapes. Mostly superficial (or so it appears). No other obvious damage to the wheels. They also sent incorrectly sized tubeless valve stems. Negotiating with Yishun to recover the cost of replacements was annoying. Communication was otherwise prompt and intelligible.

Weight F/R, less tape and stems: 755g / 895g (1650g)
Dimensions: 22 internal, 30mm external at bead, 55mm tall (all accurate to spec)

Spoke tension is quite even and both wheels are in perfect true. The rim profile, which looks rather square in photos, is actually nicely rounded. My Schwalbe Pro One 28c tires measure just over 31mm on these rims. The 25mm version would be ideal from an aerodynamic view, but the ride quality of the 28s (80/55 PSI at 80kg) is excellent.

I just took them out for a first right tonight on a mostly flat route. They're definitely quicker than my stock wheels (30-profile, alloy, 2100g) on the same tire; I set a number of PRs on segments I've done 60 or 70 times. The weight difference wasn't obvious on this terrain. A few mild crosswinds, I barely noticed. If Yishun had a 65-profile rim, I'd have opted for that in the back.
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by Weenie


emotive
Posts: 87
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

alexdi wrote:
Wed Jul 18, 2018 3:11 am
The rim profile, which looks rather square in photos, is actually nicely rounded.
Well that changes things, their web images with the square profile are costing them sales IMO.

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