MOST FREQUENTLY ASKED QUESTIONS

F A Q

Can I purchase rims without holes on the center channel?

While it is possible to order rims without access holes, we prefer standard drilled rims. Rims with an undrilled bead seat are heavier and much more difficult to assemble or replace spokes. In our experience, a standard taped tubeless rim is equally effective while making it much easier to service and and the system weight remains lightweight. That said, if you really prefer rims without access holes, please contact us and we can do that for you by special order.

Can I get a custom spoke count? Custom angled hole?

We are able to custom drill any spoke count, and some rims can have a custom spoke angle. Please contact us, and we can consult our engineers on availability.

What is the difference on UD, 3k, 12k weaves?

The weaves are entirely cosmetic and do not affect the performance or weight of the rim significantly. Click this link to see the differences between three weaves.

How about your braking track on road rims? What temperature can it handle?

High TG Surfaces uses a special resin mixed with dry carbon fiber to create a unique carbon fiber layer. The resin is highly resistant to heat and can withstand temperatures of over 240 degrees Celsius. Repeated testing has shown that the braking surface is highly resilient to temperature changes and resists brake fade during extended braking.

Our latest upgraded Grooved Graphene Surface runs a new resin system and construction method, combined with the 3k rim track, withstands over 280°C, dissipates heat, and lowers rim temperatures faster in between braking efforts. Gain confidence-inspiring brake performance on the steepest descents and wettest conditions with our matching brake pads. Also, graphene added to the rim brake track allows for greater resistance to overheating with improved heat dissipation and reduced temperature accumulation during heavy braking. The grooved track helps evacuate trapped moisture between pad and rim in wet conditions and brings more resistance and force at the lever when conditions are dry.

How do I choose the best rim for my style of riding?

Road rims: Please see our guides for choosing the right road rim depth.

What is the difference between an asymmetrical and symmetrical rim?

Asymmetrical rims are designed and drilled to compensate for the offset design of most hubs. The asymmetry of the rim allows the spokes to equalize in tension between the drive and non-drive sides of the wheel. The result is in more even spoke lengths and a stronger wheel build which requires less truing than a traditional rim.

Symmetrical rims utilize standard drilling practices and do not compensate for the offset hub design. The result is a wheel build that may not be as strong as an asymmetrical build, but comes as a more cost effective option.

How are Recon Pro rims better than the standard Recon rims?

Our Recon Pro rims use a completely new mold design and new manufacturing process that allows the rims to come out of the mold as a finished product (no sanding & painting needed). The layers of carbon are not disturbed post-production which results in a stronger rim with a more scratch resistant finish. We use a new resin system with a lengthened fatigue life and superior consistency. The recon pro rims are more durable and made in new dust-free production line.

All of these improvements coupled with an updated asymmetric profile shape has allowed us to extend our standard warranty on these rims to 5 full years or lifetime warranty!

To learn more about the key differences between the Recon Pro and Standard Recon rims, have a look at the following page on our website.

What tire pressures should I run?

Carbon rims do not do well when the pressure is too low, or the pressure is too high. Unlike an alloy rim, which will dent, carbon rims will crack if the pressure is too high or if subject to a large hard impact when the pressure is too low.

While largely personal preference, there are pressure ranges that work well with each rim. The wider the rim or the larger the tyre, the lower the pressure required. The sweet spot for air pressure is not too low that you are frequently bottoming out the rim, and not too high that the tire is hard and uncontrollable. If you are riding more technical terrain than normal, it is a good idea to increase the air pressure a few psi to prevent bottoming out excessively.

Double checking air pressure before each ride is imperative to avoid excess rim strikes and poor performance. Ultimately, you have to consider your terrain, weight, riding style, tire choice, rim width, and use good judgement.

How can I get the spoke length for external hole rim or internal hole rims?

For external nipple builds (standard), you can use the ERD listed on the rim pages on our website. *Standard nipple heads only. If you are using nipples with a raised head like DT Squorx or Sapim/DT double square or hex nipples then you need to add 2mm to the ERD. As with ANY wheel build, the most accurate way to get the ERD is to measure it on your specific rims because the ERD can vary.

For internal nipple builds, generally speaking you’d need to add 8mm to the ERD.

Please contact us if you want us to calculate the spoke length, here is what we’d need to know:
Internal hole rim or external hole rim
Hub manufacturer name and model
Hole counts
Front and rear axle width
Straight pull or J-bend
Spoke lacing preference (2-cross? 3-cross?)
Nipple preference (If you are using nipples with larger heads double square, Squorx or Hex etc. then we will need to know as longer spokes are required!).

Can I send my hubs over for custom building?

Yes! Please email us before sending the hubs so we can create a purchase order and provide you with the appropriate instructions for shipping and payment.

Can I get custom wheels?

Yes, we have a significant amount of customization on our wheel building tools on our site! Please contact us if there is something missing from our builder and we’ll see what we can do.
Custom MTB Wheels: https://www.lightbicycle.com/custom-mountain-wheels.html
Custom Road Wheels: https://www.lightbicycle.com/custom-road-wheels.html
Custom Fatbike wheels: https://www.lightbicycle.com/custom-fat-wheels.html

For more custom wheels requirement, please contact us at sales@lightbicycle.com.

What tension should I build my light bicycle rims with?

Bring the spokes to an even tension, with a maximum tolerance 5% for all drive side and 5% all non-drive side. For our recommended spoke tensions, please see the chart below. During and after building, have the wheel stress relieved properly. If a spoke develops a sharp bend in it while building, please replace the spoke.

Spoke Tension Reference Chart:
We apply the following spoke tension range while building wheels.
Front wheel non-drive side Rear wheel drive side
Symmetric MTB/road disc wheelset 120-130kg/f 120-130kg/f
Asymmetric MTB/road disc wheelset 120-130kg/f 120-130kg/f
Road non-disc wheelset 100-110kg/f 125-135kg/f
*Make sure the max spoke tension is less than 135 kg/f on any spoke!

How should I lace my light bicycle MTB rims?

We recommend lacing the wheels with the outside spokes rotating forward in order to brace the braking forces common on disc brake wheels. Some companies build the rear for driving forces, while other companies use the Shimano method which is braking force (disc rear) and driving force (drive side rear). We have been successful using the braking force method and recommend you use the same, although the Shimano method is acceptable as well.

Typically we build 29er wheels 2x and 650b wheels 3x with 28h and 32h builds. A 2x build results in a laterally stiff wheel that utilizes shorter and lighter spokes which is why we use it in 29” builds more commonly. 3x is more traditional and results in a torsionally stiff wheel. Either method work well.

Are nipple washers required for wheelbuilding?

With Light Bicycle rims, nipple washers are not required.

Can spokes and nipples be purchased separately?

Sure! Please let us know which nipples you’re looking for. For spokes, we’d need to understand the length or wheel build specifics, and type of spoke you require so that we can ensure we have them in stock.

What is the weight difference between brass and alloy nipples?

The weight difference is about 50g for a 32h wheelset.
Brass: 1.09g/pcs
Alloy: 0.36g/pcs

How can I get the custom decal and how much does it cost?

For the custom decals, please email us a picture or describe what you would like. Generally speaking, it is USD65~$120 for graphic cost one color or two color graphic. It depends on decal size and color.

Our standard light bicycle decals are available at no charge.

Import and Customs fees are high for my country. Is there a way to avoid this?

When buying direct from China we found the best way was to use TPD delivery (Pre-paid duty) for our European customers. This way there are no charges upon receiving the product. Read more Delivery Methods to European Countries.

What can I do if I receive a damaged parcel?

Check the product carefully before signing!

If you receive a product with damaged packaging, inspect the items carefully for damage. If there is no damage, sign for the product. If there is damage, report this on the delivery slip or, alternatively, refuse the shipment and it will return to Light Bicycle. If a claim is made against the shipping company, they will provide a compensation number. Please inform Light Bicycle of this number for delivery tracking. Arrangements for reshipment will be made within 10 business days upon receiving the returned package.

If the items are damaged but accepted and not reported, there is no recourse against the delivery company and you are responsible for purchasing any replacement product.

If the package is in good condition, but the product is significantly damaged during shipment, please keep the waybill, packaging, etc. and contact us within 7 days after the delivery.

Need help with some technical issues like tire mounting, or hub issues?

Check out our YouTube channel for informative videos.

Can I change or cancel my order?

Our “Purchase Alternation or Cancellation Policy” applies when you cancel all or part of a purchase after the payment is partially or fully made, but BEFORE the shipment of products. If you cancel a purchase once it has shipped, it will be treated as a “return” with all applicable fees. Please refer to our “Product Return Policy”.

What’s your warranty policy?

For Non-Pro Series Rims: From the date of purchase, 3-year Warranty

For Pro Series Rims: From the date of purchase, 5 Years Warranty. Light Bicycle is pleased to offer the options to purchase a lifetime Premium warranty with minimum charge respectively. Know more about the warranty details.

How to check the correct orientation while building asymmetric wheel?

• Follow the spoke direction shown on arrow sticker.

The rims have angled nipple holes that alternate left/right/left. Please lace spokes in the correct direction to avoid spoke hole damage. The direction is shown on arrow sticker near the valve hole.

the spoke direction indicator on rim • Asymmetric rims building tips

For asymmetric rims, there are shorter and longer arcs. When viewing from the rim channel, it's easiest to find the shorter side and longer side by looking at the valve hole in relation to the nipple holes. Please make sure the rim is in correct orientation - It is different for front and rear wheels!

Front Wheels: shorter side for drive side, longer side for non-drive (disc) side

Rear Wheels: longer side for drive side, shorter side for non-drive (disc) side

the spoke direction indicator on rim

Having trouble of mounting the tires?

Part of the problem you may be having is because you are using regular tires that are intended for use with tubes. Our rims are designed for tubeless tires and, as a result, the tolerances are a little different. Normal tires don't have as nice of tolerances on the bead diameter so it is really hit and miss on how they will fit on a tubeless rim. Some might work, but generally they will fit too tight and you'll be fighting it. The best bet would be to use a tubeless compatible tire and you could still use a tube in those if you want.

We have had customers emails about this challenge as they like to use a traditional favourite tire and they complained how tight they are. We bought the same tire they were complaining about and mounted it (by hand without levers) on their exact rim that they returned and showed them a video of us installing it just fine. It takes some technique to install tubeless tires and even riders who have been installing tires for 20+ years could have a problem. They are used to installing tube compatible tires on non-tubeless rims which does not qualify as experience or even the technique used when installing tubeless tires. We actually sent a number of rims to Schwable to see if this was going to be a problem and each one of them came back rated as "Simple, By Hand" when it came to mounting the tire.

Tubeless carbon rims are made with tight tolerances, and unfortunately clincher tires are not. So if you are willing to change to tubeless tires and ride those if you find your current tires prove to be too much of a struggle, then that would be a safe bet.

We hope this helps!

COMMENTS

S

Seb 2019/09/06

Hi LB Team, I am considering WR38 and WR50 to build a set of wheels, but I am hesitating between both. I would like to have your advice. I am a 87kg rider, doing 8000 km per year from short (50 km) trainings to long (1200km) bike trip. No race. I am looking for a set of wheel that could handle both tyres : - 28mm for fast pace short ride (and a bit of aero gain) - 35mm for long distance bike packing trip (that include some off road tracks). WR50 or WR28 ? Thanks


LightBicycle 2019/09/06

Hi Seb, Thanks for your inquiry. Is there any climb road through your bike trip? If not, you can go for deep wheels(WR50). If there is quite a few climbing area, then go for WR38 to save some weight. And you can go for front 24H/rear 24H for your wheelset. You are not a large rider. ​ Thanks, Lightbicycle


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L

Laguite 2019/04/29

Hello Hesitating between : https://www.lightbicycle.com/35mm-wide-29er-rims-beadless-for-bicycle-trail-or-mountain-bike-enduro-with-tubeless-compatibility.html And https://www.lightbicycle.com/AM930-asymmetric-rim-profile-carbon-29-inch-carbon-rims-mtb.html Same inner width and (almost) same weight. I'm looking for lightness and lateral stiffness (precision), but want to keep the ride comfy. So which one is vertically the most compliant, meaning which one is the less harsh to ride ?


LightBicycle 2019/04/30

Hi Laguite, Thanks for your inquiry! If you do not prefer mtb wheels too stiff, AM930 is better. AM930 29er bike rim is with new technologies, Our Recon Pro rims use a High-grade customized epoxy resin in the prepreg, which creates an incredibly stable base for our rims. Epoxy is less brittle than polyester resins and offers far better flexural strength. This consistent resin system coupled with a precise layup schedule offers the most reliable and durable product we’ve ever created. Thanks, Lightbicycle


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J

John 2019/02/07

can't find the 29er 50mm rims? was thinking about getting another set???


LightBicycle 2019/02/07

Hi John, Sorry for making hard to find 29er 50mm wide plus rim. It is here. Do you like rims only or wheelset? Please let us know if you have any other questions. https://www.lightbicycle.com/Carbon-beadless-50mm-wide-29-inch-rims-for-29-plus-mountain-bikes-tubeless-compatible.html https://www.lightbicycle.com/Hand-built-carbon-mountain-bike-29er-plus-wheels-50mm-wide-beadless-tubeless-compatible.html Thanks, Lightbicycle


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M

Michael 2019/01/20

Hello Fellows, I trust you are well. I have a set of boost DT Swiss hubs and Aerolyte spokes purchased to length to install a set of your AM 930 rims onto. I now realise I will possibly be using higher than 35 psi ( rated ) tyre pressures. OOPS. I am wondering if you have "lipped", higher tyre pressure rims, so as I might be able to use the spokes ( a bit pricey, here in Australia ), I have. These are to be gravel, tourer bike wheels. Which is why I chose the 30mm robust rim in the first place. I have a set of the AM 930 ( heavier duty version ), on my MTB. They have been excellent. Thanks for any information you may be able to provide. Kind regards, Michael.


LightBicycle 2019/01/21

Hi Michael, It is great to hear that you like our AM930mm 29er rims. May i know what tire pressure are you going to use? For hookless, in our lab test, it is okay to ride if you ride around 60psi. Also, may i know your tire width? Then we can check accordingly for you. Thanks, Lightbicycle


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T

Thorsten 2019/01/12

Hey, I have a Liteville frame with a EVO6 standard for the rear wheel. Can I order a rear wheel with a boost hub but built symmetrically according to the EVO6 standard?


LightBicycle 2019/01/15

Hi Thorten, We did some research on the EV06 standard technology, and found that its very similar to the Cannondale AI system. We have built a few sets wheelset with the 6mm offset for the Cannondale AI system. So, we can build wheelset for your EVO6 bike. Which wheelset are you interested in? Thanks, Lightbicycle


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R

robin 2019/01/09

here is the info you require for a spoke calculation, please let me know what spoke calc you get for front, rear non drive, and rear drive. thank you very much. -robin Internal hole rim or external hole rim YOUR 55MM CARBON SO EXTERNAL? Hub manufacturer name and model CHRIS KING R45 NON DISC Hole counts 20 FRONT, 24 REAR Front and rear axle width 100MM FRONT 130MM REAR, Q/R AXLES Straight pull or J-bend J BEND Spoke lacing preference (2-cross? 3-cross?) ZERO CROSS FRONT, TWO CROSS REAR Nipple preference SAPIM POLYAX ALUMINUM NIPPLES


LightBicycle 2019/01/10

Hi Robin, For nipples, is it 14mm or 16mm? Then we can get the spoke length for your reference today. Thanks, Lightbicycle


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robin 2019/01/09

hi, i'm building a set of your 55mm deep carbon 700c 25mm U shaped clincher rims 20 zero cross front and 24 two cross rear for a customer. The erd lists as 530mm "not including nipple head dimension". I'm using sapim polyax aluminum nipples. Does using these nipples add to the erd for spoke length calculation? Do you suggest using washers on the spoke nipples for these rims? Thank you. -Robin Robin's Wrench Maynard, MA, USA


LightBicycle 2019/01/10

Hi Robin, We got your message here. We build wheelsets without washers here. So, it is okay to build wheelsets without washers for you, but make sure that the spoke tension is less than 135KGF whild building wheels. For rim ERD, it is caculated like this. I think below will be easier for you to understand it. Rim OD-2*rim depth+ 2*rim spoke hole wall thickness= 633- 2*55+2*3.5mm=530mm Please let us know if you have any other questions. It is our pleasure to help you. Thanks, Lightbicycle


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