New Nextie Rim Brake Rims

[matty]

Looking at building carbon rim brake wheels and these new Nextie RX rims look interesting as have not come across many that compare for weight

https://www.nextie.com/road-RX-series

Also thinking of h-works for the hubs which I only came across today

https://www.h-works.cn/collections/hubs ... %7EV-Brake

Anyone have any experience with either?

[wheelbuilder]

What are you building them for? Those weights are good but they are very narrow.

[bobones]

They're standard width for rim brake rims and perfect for 25mm tyres. If you''re building light wheels with light rims, why put on heavier tyres than you need?

[wheelbuilder]

They're standard width for rim brake rims and perfect for 25mm tyres. If you''re building light wheels with light rims, why put on heavier tyres than you need?

Which is why I asked what they are being built for.

[OtterSpace]

yeah.

What bike are you using them on, what size tires do you want to run, what is approximate rider weight range, and what are you trying to optimize for aero, crr, comfort, crosswind stability?

From that info determine a rim depth, inner & out width, and only then start optimizing for weight spoke type hubs etc.

[toxin]

Rim profiles are awful, if that's something you care about

[bobones]

Rim profiles are awful, if that's something you care about

They're for rim brakes. With 25 mm tyres on them, they'll have an elliptical profile. What's so bad about that?

[bobones]

They're standard width for rim brake rims and perfect for 25mm tyres. If you''re building light wheels with light rims, why put on heavier tyres than you need?

Which is why I asked what they are being built for.

Yeah, but for rim brakes they're far from "very narrow".

[Mr.Gib]

What seems to be missing is the info about the width of the rim at the widest point. They appear to be fatter in the middle in displayed profiles. Maybe they bulge out to 28mm+?

Rim profiles are awful, if that's something you care about

Curious - what don't you like about them?

[toxin]

The widest point would be better being a little closer to the tyre. The "bottom/trailing edge" would be better a little sharper. The bulge is basically useless on the smallest sizes.

They could be pretty good for crosswinds tho

[matty]

Didn't expect so many replies. Bike is a 2002 Lemond Tete de Course running 10 speed Campagnolo Record and skeleton brakes. So restricted by what I can fit and looking for something with grooved brake track and lighter weight than my current shamal ultra.

I love this bike and would struggle to get something more modern to replace it hence keeping it going for as long as I can with wheels being the only further area to upgrade without replacing groupset to gain some extra gears.

[matty]

I still have yellow veloflex black tyres max width 25mm and some old corsa cx with yellow stripe in 23mm. Probably would also try Pirelli P Zero Race in either 26mm or 28mm clearance allowing. Bike has yellow accent theme from the original decals and bar tape, saddle, lever hoods.

[wheelbuilder]

From your additional info those Nexties will be good.

[alanyu]

This shape, IME, is much less stable than curved-V (bontra XXX, LB AR) in similar width (widest point around 28)