45mm U-shaped Road bike rim layup schedule

These days, we have got quite a few mails from customers. They are confused at our UD U-shaped 45mm clincher rims. They see 3k weave on rim bed and consider the rims are 3k, not UD actually.


Please check as below, then you will understand the rims are with UD construction.



For more detail information about 3k/12k/UD carbon fiber:


No matter 3k/12k/UD rims, all the inside carbon fiber are UD carbon fiber, UD layers are applied at different angle on each other. They are still not identical.


For example, the orientation are different( some are placed at 0 degree, some are 45 degree, 90 degree,etc.). It is very important to use right orientation for carbon layers. Our engineers will use experience & testing result to use the best orientation for each carbon layer to make the rims with best strength.


For 3k rims, it is only the top layer in 3k weave( only one layer 3K, all the inside are UD).

For 12K rims, it is the same. Only the top one layer is 12K weave.

For UD rims, it is around 99.9% carbon fiber layers are UD, only one small 3k layer on the top of rim bed, to prevent carbon fiber split after spoke holes machining on rim bed.


45mm U shaped Road bike rim UDThe 3k 12K UD carbon fiber weave for rim and frame


No matter 3k/12k/UD rims, all the inside carbon fiber are UD carbon fiber, UD layers are applied at different angle on each other. They are still not identical.


For example, the orientation are different( some are placed at 0 degree, some are 45 degree, 90 degree,etc.). It is very important to use right orientation for carbon layers. Our engineers will use experience & testing result to use the best orientation for each carbon layer to make the rims with best strength.


For 3k rims, it is only the top layer in 3k weave( only one layer 3K, all the inside are UD).

For 12K rims, it is the same. Only the top one layer is 12K weave.

For UD rims, it is around 99.9% carbon fiber layers are UD, only one small 3k layer on the top of rim bed, to prevent carbon fiber split after spoke holes machining on rim bed.


45mm U shaped Road bike rim UD

UD Rims


45mm U shaped Road bike rim UD bed

UD Rims bed


45mm U shaped Road bike rim UD cross profile

UD Rims cross profile


45mm U shaped Road bike rim UD

3K Rims


45mm U shaped Road bike rim UD bed

3K Rims bed


45mm U shaped Road bike rim UD cross profile

3K Rims cross profile


But there is one mechanical benefit for 3k woven carbon fiber. Putting the 3k woven carbon fiber around hole area& machining, it can prevent carbon fiber from laminating while machining. That is why 3k weave(only 1pcs small layer) on the top of rim bed.


And one 3k layer on the top of rim bed will make the rim looks special and nice.


So, our UD rims are not 3k construction, it is really UD rims 700C U-shaped.


Please contact us if there is any question of rim construction. We will let our engineers reply accordingly and share more detail Technology about U shape 45mm clincher. It will be better if customers help to offer some suggestion.

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UD Rims


45mm U shaped Road bike rim UD bed

UD Rims bed


45mm U shaped Road bike rim UD cross profile

UD Rims cross profile


45mm U shaped Road bike rim UD

3K Rims


45mm U shaped Road bike rim UD bed

3K Rims bed


45mm U shaped Road bike rim UD cross profile

3K Rims cross profile


But there is one mechanical benefit for 3k woven carbon fiber. Putting the 3k woven carbon fiber around hole area& machining, it can prevent carbon fiber from laminating while machining. That is why 3k weave(only 1pcs small layer) on the top of rim bed.


And one 3k layer on the top of rim bed will make the rim looks special and nice.


So, our UD rims are not 3k construction, it is really UD rims 700C U-shaped.


Please contact us if there is any question of rim construction. We will let our engineers reply accordingly and share more detail Technology about U shape 45mm clincher. It will be better if customers help to offer some suggestion.

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COMMENTS

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phillip 2015/06/15

How much would for just 1 rear wheel, tubeless ready for 11 speed shimano?


Light-Bicycle 2015/06/16

Hello Phillip, If you like, we can build it as below. -Rim: 25mm wide U-shaped 45mm clincher rim, 460 /-15g. Attached is the rim cross-section drawing. For rim weave, do you prefer 3k, 12k or UD? Matte or glossy? 24H? Please find below link. http://www.flickr.com/photos/light-bicycle/sets/72157631432948364/detail/ -Hub: Novatec F482 for Shimano 11s. Do you like black, red or white? -Spokes: Black, Pillar Aero X-TRA 1420 aero -Nipples: Pillar PT 734. Do you like black/blue/gold/green/red/silver? Thanks, Light-bicycle


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