Open mold wide profile carbon wheels

Everything about building wheels, glueing tubs, etc.
ultreia
Posts: 34
Joined: Sun Oct 09, 2011 3:31 pm

by ultreia

I am just checking many RIM options and I found this one:
https://www.aliexpress.com/item/32723985797.html

They are from Deerobust... do you know the real factory? What about the quality? I tested their 270 extremely light 30mm tubular rims on CX and they worked fine.

Now I am working on a build with 38mm rim brake clincher for road and I think they are pretty good and they have a good weight: 390 grams!

Any other option on the same price range?

by Weenie


AZR3
Posts: 913
Joined: Wed Sep 12, 2012 9:00 pm
Location: Az USA

by AZR3

I'm looking at getting some Farsports KAZE tubulars and was curious if anyone has any feedback on their HMX brake surface.

MAJ
Posts: 38
Joined: Wed Mar 27, 2019 8:33 pm

by MAJ

I'm using a set of deerobust wheels.

38mm carbon profile
Yuniper nitro disc hubs
Cx-Ray Ray's

Wheight: claimed 1290gr... real 1320gr

I'm using these wheelset for one year and I'm incredible happy


I'm thinking in buy a new set (I have only one set of wheels for my road bike), same seller, same hubs, but with 30mm carbon rims

The 30mm will be lighter, 1259gr claimed weight (+-5%... so I expect same difference as with my 38mm set... so real could be 1290gr) thinking in climbing days or periods and for have a standby wheelset.

What do you think about 30mm rims...will be better for clim or the same as 38mm?

This rims have 30mm height and 28mm outer wide, 18mm internal

Any othe recommendation??

Last edited by MAJ on Fri Aug 14, 2020 10:02 pm, edited 1 time in total.

emotive
Posts: 352
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

MAJ wrote:I'm using a set of deerobust wheels.

38mm carbon profile
Yuniper nitro disc hubs
Cx-Ray Ray's

Wheight: claimed 1290gr... real 1320gr

I'm using these wheelset for one year and I'm incredible happy


I'm thinking in buy a new set (I have only one set of wheels for my road bike), same seller, same hubs, but with 30mm carbon rims

The 30mm will be lighter, 1259gr claimed weight (+-5%... so I expect same difference as with my 38mm set... so real could be 1290gr) thinking in climbing days or periods and for have a standby wheelset.

What do you think about 30mm rims...will be better for clim or the same as 38mm?

This rims have 30mm height and 28mm outer wide, 25mm internal

Any othe recommendation??
Your 38mm rims are already light, I don’t think you will notice the weight saving of the 30mm rims. For a 70kg rider climbing on 6% grade at 280W, a weight saving of 1kg is like having 4W extra power. A weight saving of 100g is only 0.4W difference, not easy to feel.

I have 1600g 50mm wheels and also 1200g 24mm deep wheels, the difference is on the acceleration from stop to start. They feel faster, more nimble. On steady climbing I can’t say I can feel the 1W of weight saving. On steep descents I can definitely feel the extra speed from the aero of the deep wheels. Strava consistently shows the faster descending on the deep wheels too.

MAJ
Posts: 38
Joined: Wed Mar 27, 2019 8:33 pm

by MAJ

emotive wrote:
MAJ wrote:I'm using a set of deerobust wheels.

38mm carbon profile
Yuniper nitro disc hubs
Cx-Ray Ray's

Wheight: claimed 1290gr... real 1320gr

I'm using these wheelset for one year and I'm incredible happy


I'm thinking in buy a new set (I have only one set of wheels for my road bike), same seller, same hubs, but with 30mm carbon rims

The 30mm will be lighter, 1259gr claimed weight (+-5%... so I expect same difference as with my 38mm set... so real could be 1290gr) thinking in climbing days or periods and for have a standby wheelset.

What do you think about 30mm rims...will be better for clim or the same as 38mm?

This rims have 30mm height and 28mm outer wide, 25mm internal

Any othe recommendation??
Your 38mm rims are already light, I don’t think you will notice the weight saving of the 30mm rims. For a 70kg rider climbing on 6% grade at 280W, a weight saving of 1kg is like having 4W extra power. A weight saving of 100g is only 0.4W difference, not easy to feel.

I have 1600g 50mm wheels and also 1200g 24mm deep wheels, the difference is on the acceleration from stop to start. They feel faster, more nimble. On steady climbing I can’t say I can feel the 1W of weight saving. On steep descents I can definitely feel the extra speed from the aero of the deep wheels. Strava consistently shows the faster descending on the deep wheels too.
Other option could be to buy 45mm set.
The question is that I want to have a second wheelset...in this seller there are different light options the lightest is a set with 22mm height and 1220gr but hookless, I think more adequate for ciclocross with low tire pressures.

I think hookless are good for mtb or cyclocross for the low pressures, but not for 6,5-7bar

emotive
Posts: 352
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

MAJ wrote:
Fri Aug 14, 2020 10:55 pm
Other option could be to buy 45mm set.
The question is that I want to have a second wheelset...in this seller there are different light options the lightest is a set with 22mm height and 1220gr but hookless, I think more adequate for ciclocross with low tire pressures.

I think hookless are good for mtb or cyclocross for the low pressures, but not for 6,5-7bar
My 1200g wheels are hookless, but running 38mm tyres at 44psi, so no problem. I agree, if you want to use for road, and narrow tyres, stay hooked.

If you want a second wheelset, consider something more aero for days when the wind is not strong, and for days when you ride flatter roads. How much do you weight?

If 60kg, go for 45mm deep
If 75kg, go for 55mm deep

cheapvega
Posts: 179
Joined: Sun Oct 06, 2019 1:12 pm

by cheapvega

Random- I bought these

https://www.ebay.com/itm/1150g-Sapim-cx ... 2749.l2649

The "1150g" claim was very effective marketing. Weight came in closer to 1165g. With the 300g hubs, Sapim CX spokes and alloy nipples I'm guessing the rims weigh about 300g per, which is pretty good.... same as the Farsports Kaze 40mms.

MAJ
Posts: 38
Joined: Wed Mar 27, 2019 8:33 pm

by MAJ


emotive wrote:
MAJ wrote:
Fri Aug 14, 2020 10:55 pm
Other option could be to buy 45mm set.
The question is that I want to have a second wheelset...in this seller there are different light options the lightest is a set with 22mm height and 1220gr but hookless, I think more adequate for ciclocross with low tire pressures.

I think hookless are good for mtb or cyclocross for the low pressures, but not for 6,5-7bar
My 1200g wheels are hookless, but running 38mm tyres at 44psi, so no problem. I agree, if you want to use for road, and narrow tyres, stay hooked.

If you want a second wheelset, consider something more aero for days when the wind is not strong, and for days when you ride flatter roads. How much do you weight?

If 60kg, go for 45mm deep
If 75kg, go for 55mm deep
Hi, I'm 65kg

emotive
Posts: 352
Joined: Tue Nov 01, 2016 10:40 am
Location: Melbourne, Australia

by emotive

MAJ wrote:
emotive wrote:
MAJ wrote:
Fri Aug 14, 2020 10:55 pm
Other option could be to buy 45mm set.
The question is that I want to have a second wheelset...in this seller there are different light options the lightest is a set with 22mm height and 1220gr but hookless, I think more adequate for ciclocross with low tire pressures.

I think hookless are good for mtb or cyclocross for the low pressures, but not for 6,5-7bar
My 1200g wheels are hookless, but running 38mm tyres at 44psi, so no problem. I agree, if you want to use for road, and narrow tyres, stay hooked.

If you want a second wheelset, consider something more aero for days when the wind is not strong, and for days when you ride flatter roads. How much do you weight?

If 60kg, go for 45mm deep
If 75kg, go for 55mm deep
Hi, I'm 65kg
Since you already have 38mm wheels, when there is wind, use those. If it is calm use the deep 55mm wheels and get the full aero benefit.

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