Hook less control carbon 29er rims is ready

Quite a few customers are waiting for a few months for this new bead hook-less carbon rims. Please find as below rim specs.


hook-less carbon 29er rims cross-section drawing
Size 29 inch
Outer width 27mm
Inner width 22mm
Depth 24mm
ERD 592mm
BSD 622mm
Rim weight 365g+/-15 for XC Cross Country
410g+/-15 for AM All Mountain

It is quite hard to imagine how to secure the tire without any bead hook.


Actually hookless rim design is not new, it has been used on automotive wheels for quite a long time. It is also hook less design & using tubeless tire. Now hook less design is started to used in bicycle rims.

hookless rim tubeless

automotive tubeless wheels


MTB 29er tubeless rim

MTB 29er tubeless rim


hookless automotive wheels

automotive hooke-less rim


carbon 29er hook-less rim

carbon 29er hook-less rim


This rim is without bread hook, it is ok to hold tubeless and tubeless-ready tires. No need to use hook less ready tires. Our engineer started to study hookless design quite a long time ago. There is similar rim on the market, there is zero issues of holding tires for hook-less rims.


The rim wall is more smooth and straight, the tire will touch rim walls fully and mounted perfectly.


We have set up tubeless tire on it. It works well, absolutely zero air leaks.


hook less 29er rim and tubeless tire

hook less 29er rim and tubeless tire


the tire is mounted on rim

the tire is mounted on rim


start to inflate the tire

start to inflate the tire


use soapy water to check whether there is any air leakage

use-soapy-water-to-check-whether-there-is-any-air-leakage


prepare to mount the tubeless tire

prepare to mount the tubeless tire


using yellow tape then adding sealant

using yellow tape then adding sealant


inflate the tire to 45psi

inflate the tire to 45psi


using the same method to double check a while later

using the same method to double check a while later


Compare to head hook design, the hook less design is more durable. Because the rim wall structure is simpler. Then carbon fiber will be more continuous. It will be stronger than a hooker carbon rim at the same weight.


Here is the testing data that we have done.

Spoke tension test:Randomly choose some spoke holes for spoke tension test.

29er hook-less rim spoke tension test

29er hook-less rim spoke tension test


hook-less rim tubeless spoke tension test

hook-less rim tubeless spoke tension test


29er rim spoke tension test nipple cracked

The testing data for spoke hole NO.1: around 374.26kgf, the nipple cracked, there is no crack on rim spoke hole


29er rim spoke tension test spoke cracked

The testing daat for spoke hole NO.2: around 305.68kgf, the spoke cracked, there is no crack on rim spoke hole

Since the spoke & nipples are crack while testing, we can not get the max spoke tension of spoke holes. But we get the result the spoke holes can hold more than 300kgf tension.


Rim Impact test:

carbon 29er hook less rim impact test

carbon 29er hook less rim impact test


carbon 29er hook less rim impact test data

While the load is around 172.98kgf, the rim cracks at the vale hole area. (Pass: LB stiffness standard is 150kgf)


Carbon hook-less 29er rim impact test data sheet

Max load Max Elongation Energy absorption Breaking strength Test time Max displacement Max Elongation
172.98kgf 47.07% 4563.50kgf.mm 18114.96kPa 4.89min 49.03mm 47.07%

If customers like to build light 29er bikes for XC riding, this rim is the best choice. It is pretty light & strong. It will become popular for light-weight 29er wheels & no tubes 29in wheelsets.


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COMMENTS

C

Carlos 2016/04/18

Im looking to replace both ENVE Carbon Twenty9 XC rims in my Cannondale scalpel team, just the rims and the spokes, which ones do you recommend? Thanks BR Carlos


Light-Bicycle 2016/04/19

Hi Carlos, You use the rim for XC riding, right? I recommend you 27mm wide 29er rim(RM29C06). Please find the attached cross-section drawing of the rim. RM29C06: $165/pcs, 360 /-15g I recommend you Sapim CX-RAY spoke which is our most durable bladed spoke. Its low weight, aerodynamics, and flexibility make it a popular choice for racing at all levels. Thanks, Lightbicycle


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M

Manuel 2016/02/21

Hi, Love the report and the wheels look great. Would love to ride them on my CrossBike. Is it rim brake compatible?


Light-Bicycle 2016/02/22

Hello Manuel, Thanks for your inquiry. The 27mm wide 29er rim is for mtb cyclocross disc bike, and not brake compatible. If you like the wider rims with brake tracks, we have 25mm wide U shape 25mm clincher rim. Does that work for you? Rims profile attached for reference. Thanks, Lightbicycle


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L

Laurent 2014/03/16

Hello I would Know if i can mount


Light-Bicycle 2014/03/17

Hello Laurent, hanks for your inquiry. It’s OK to build the wheels for you. For the rims, you prefer 27mm wide 29er hookless rim, right? Please find the attached cross-section drawing. For the rims, do you prefer UD, 3k or 12k? Matte or shining? 32 holes? http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ There are Novatec and Hope hubs here. Which one do you want? Axle size for the hubs? Thanks, Light-bicycle


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A

Anthony 2014/02/19

Hello, I am very interested in your 29er hookless 35mm OD rim. Could you please supply details and also a link to a page where I can purchase. Do you have photos of this rim? I want Matte UD finish. Additionally, can you supply Hope hubs separately if I wish to build the wheels myself? thank you.


Light-Bicycle 2014/02/20

Hello Anthony, Thanks for your inquiry. Please find the attached cross-section drawing of the 35mm wide 29er hookless rim. There is an eBay store of Australia. You can find the link as below to get more detail information. http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=331112175731&ssPageName=STRK:MESE:IT It’s OK to have the rims with UD matte. For the rims, do you prefer 32H? We also sell the Hope Pro 2 evo hubs(24T and 40T). What axle size do you prefer? Color? Thanks, Light-bicycle


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H

handly 2014/01/19

Hi, please send me specs and cross section for 35mm wider hookless 29er rim.erd too. thank you


Light-Bicycle 2014/01/20

Hello Handly, Thanks for your inquiry. Please find the attached cross-section drawing of the 35mm wide 29er hookless rim. The ERD is also in the cross-section drawing. For the rims, do you prefer UD, 3k or 12k? Matte or glossy? 32H? http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ The Chinese New Year is coming. If you order currently, I'm afraid your rims will be send off after February 12th. Thanks, Light-bicycle


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S

sean 2013/12/15

Can you run regular tires and tubes with these hook less rims or are they designed to run tubeless only. Thanks sean


Light-Bicycle 2013/12/16

Hello Sean, Thanks for your inquiry. This rim is for tubeless compatible. So, it’s OK for the tubelss or tubes(tire). For the 27mm wide 29er rims, do you prefer UD, 3k or 12k? Matte or glossy? 32H? http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ If you’d like to order, I can create an invoice accordingly Thanks, Light-bicycle


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J

Jami 2013/12/06

Hi. I have a set of the wider (30mm outer) 29 wheels from LB, and have really been enjoying them. I see that the 35mm outer width hookless 29 rim is available now. I am looking at building another set of wheels for a different bike. Please send me info on the 35mm hookless 29 rims- cost for rims only, pictures, cross section, and approx lead time from order to ship. Thank you.


Light-Bicycle 2013/12/09

Hello Jami, Thanks for your support. There is a new kind of 29er hookless rim (35mm outer width & 25mm depth) with new process. It's also tubeless-compatible. The weight is 420 /-15g and the price is USD180/pcs. Please find the attached cross-section drawing. Do you like this kind of rim? For the rims, do you prefer UD, 3k or 12k? Matte or glossy? 32H? http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ The lead time is around 13 business days and it usually takes 4~7 days for delivery. If you’d like to order, I can create an invoice accordingly( Thanks, Light-bicycle


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B

Brian 2013/11/25

Hi Could you please send me the cross section drawings of the new wide 35/30mm rim? When are you able to ship them and how much will they weigh? regards Brian


Light-Bicycle 2013/11/25

Hello Brian, Hello Brian, Thanks for your inquiry. Please find attached rim profile. The rim is ready to sell, it is USD180/pcs, and the rim weight is 420g /-15. Thanks, Light-bicycle


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D

Dan 2013/11/18

I am looking for a 29 inch hookless rim with 35mm outer width and 30mm inner width. If this is scheduled for production when will it ship and what will be the cost and shipping. Thank you.


Light-Bicycle 2013/11/19

Hello Dan, Thanks for your inquiry. We are going to manufacture a new kind of 29er hookless rim (35mm outer width & 30mm inner width) with new process. It's also tubeless-compatible. Please find the attached cross-section drawing. For the rims, do you prefer UD, 3k or 12k? Matte or glossy? 32H? http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ The rim mold is just started. We will start to sell it around at the end of this month. Thanks, Light-bicycle


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C

Cory 2013/11/15

Will you make a rim like this in 27.5 size soon?


Light-Bicycle 2013/11/17

Hello Cory, Thanks for your inquiry. We are going to manufacture a new kind of 650B/27.4 inch hookless rim (35mm outer width & 25mm depth) with new process. It's also tubeless-compatible. Please find the attached cross-section drawing. Do you like this kind of rim? The rim mold is just started. We will start to sell it around at the end of this month. Would you like to wait for this new rim? Thanks, Light-bicycle


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