Comments on user guides

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Brad 2021/03/10

Hi Team I have ordered a set of 29er Recon 928 32H that i will be lacing to DT350 hubs front and rear. I am after spoke length recommendation. I plugged the numbers into the DT swiss spoke calculator however i don't know how much the asymmetric rim shape will affect spoke length. any guidance would be appreciated Cheers Brad


LightBicycle 2021/03/10

Hi Brad, You can use the lengths calculated by DT online calculator but if it's straight-pull spokes, the lengths might be slightly different. We can do the calculation for you if you want. What exact hubset and spokes that you want to build with? Thanks, Lightbicycle


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David 2020/12/21

Hi. I'm going to be building a wheelset with your 925XC rims. Light in front and standard in rear. I'm lacing them to I9 classic 6 bolt hubs. Boost 110 front and 148 rear dropout spacing. Can you help with spoke length calcs? Front hub Flange Dia L = 58mm, R = 45. L Center to flange = 27mm, Right Center to flange = 42mm with 2.5mm hole Right hub Flange Dia L=58mm, R = 25mm. Left center to flange= 38mm, Right Center to flange Diameter = 25mm. Thanks, Dave M.


LightBicycle 2020/12/21

Hi Dave, Are the XC925 29er rims with 28h? Please confirm that the hub model Industry Nine Torch boost? If so, the flange diameter of the rear wheel should be 60mm on the disc/right side. Thanks, Lightbicycle


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Matt 2020/12/16

Hi team, I just purchased a set of XC925 rims (one flyweight, one standard, 28H...Invoice #56742 from North American warehouse). I will be lacing them to DT SWISS 180 boost center lock hubs with Sapim CX-Ray Bladed spokes. Can you tell me: 1. Recommended nipple size...I'm assuming 14mm? 2. Recommended spoke lengths for both drive and non-drive sides? Front Hub: DT SWISS MTB 180 Straightpull Center Lock 15x110mm Thru Axle 28 Hole Rear Hub: DT SWISS MTB 180 Straightpull Center Lock 12x148mm Thru Axle 28 Hole Thank you! Matt


LightBicycle 2020/12/17

Hi Matt, 1. We use 14mm external nipples for wheelbuilding. You can choose Sapim double square nipples to match. 2. The spoke lengths are: 301mm for the drive side of the front-wheel, 85-95kgf, 300mm for the non-drive side of the front-wheel, 115-125kgf. 300mm for the drive side of the front-wheel, 115-125kgf, 301mm for the non-drive side of the front-wheel, 85-95kgf. Thanks, Lightbicycle


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Brent 2020/11/02

Hi, I just purchased some AM928 rims. What spoke nipple length do you recommend? Are standard 12mm OK? Thanks!


LightBicycle 2020/11/03

Hi Brent, Normally, we use 14mm or 16mm nipples for wheelbuilding here. Thanks, Lightbicycle


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Sigurd 2020/10/22

Hi. What is the max possible pressure on WR50 hooked and hookless, I see your guide says 60 and 50psi, yet I have read people have gotten a different answer from your support. So, what is the maximum recommended tire pressure on the WR50 wheels, both hooked and hookless. Thanks in advance.


LightBicycle 2020/10/23

Hi Sigurd, The recommend tire pressue used for hook WR50 road disc is 80psi, 50psi for hookless rim. Check out more details on tire pressure recommendations from our tire pressure charts at https://www.lightbicycle.com/newsletter/Tubeless-Tire-Pressure-Charts.html Thanks, Lightbicycle


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Chris 2020/10/18

I own AR36 rims with grooved graphene brake track. Which direction should the grooves face, with closed end or open end toward the direction of rotation?


LightBicycle 2020/10/19

Hi Chris, You should be able to find an image on the User Guide we pack in the box for the grooved braking surface installation. Here's the image in case you cannot find the User Guide. https://www.lightbicycle.com/images/support/wheel-rotation-direction20191112.jpg Thanks, Lightbicycle


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Stephan 2020/10/05

I'm planning to order the following rims: https://www.lightbicycle.com/55mm-deep-carbon-700C-25mm-wide-road-disc-rim-clincher-New-Gen-Aero-Shape-tubeless-compatible.html Can you recommend Sapim Poliax nipples? http://sapim.tinkerbox.be/nipples/design/polyax Which washers do you recommend for this product? https://www.sapim.be/tools/washers Can you also recommend the following washers? Are they compatible with the rim? https://www.newmen-components.de/de/439/mtb/zubehoer/mg-washer/


LightBicycle 2020/10/08

Hi Stephan, 1. We've used Sapim Polyax nipples for years now, they are great. However, the double square nipples are better for building, which is also the nipple option we go for nowadays. 2. We don't use the washers for all our wheel builds. Our bike rim spoke hole strength is strong enough. If you are after corrosion prevent, I think brass nipples would be a better choice. But, you can still use washers if you don't mind the weight adding. But I am sorry that I am not able to do recommendations for the washers since we don't have experience with this. Thanks, Lightbicycle


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Terence 2020/08/13

Hello, I currently have a gravel bike with quick release (QR) skewers. If I purchase a wheel set with QR, in the future can they be easily converted to thru axle if I get a different frame?


LightBicycle 2020/08/14

Hi Terence, Normally, they are convertible. You just have to buy the convert kits from QR to 12*100mm/12*142mm. Thanks, Lightbicycle


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Clemens 2020/06/15

Hello, my rims have arrived today. thank you what spoke length and which nipples do I need? I read that they can help with this problem. Rear wheel: https://r2-bike.com/DT-SWISS-Hinterradnabe-350-Straightpull-Disc-6-Loch-fuer-12x142-mm-Steckachse-Freilauf-SRAM-XD Front wheel: https://r2-bike.com/DT-SWISS-Vfrontradnabe-350-Straightpull-Disc-6-Loch-15x100-mm- thru axle Rim: 650B EN740 28H centered matte UD sincerely yours best regards Clemens Germann


LightBicycle 2020/06/16

Hi Clemens, I am glad that the 650B rims arrive safe and sound. Of course, we can make the calculation of spoke lengths for you. The length is 276mm for both the drive side and the non-drive side of the front and wheel. Built with 3X lacing. Thanks, Lightbicycle


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Jonte 2020/01/19

hello there I have a flyweight RM29C06 front wheel as my xc race wheel and am looking for another rim to build onto the rear. I race World Cup xc courses so they can be quite technical and I ride a full bus and am 73kg. would I get away with a flyweight for the rear or should I stick with a standard? these are used for racing only. regards Jonte


LightBicycle 2020/01/20

Hi Jonte, Thanks for your reaching out!If you ride technically in XC race, we really recommend rear standard version. It will be more durable and safe for you. You can order front flyweight and rear standard for your 29er XC wheelset, but light hubs. It will make the wheelset weight light. Thanks, Lightbicycle


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Robert 2019/12/05

Do you have spoke count recommendations for rider weights for your road rims?


LightBicycle 2019/12/05

Hi Robert, The stiffness of different rims are different, could you pls let me know your weight/riding style and your ideal road bike rim 700C? I could recommend a suitable spoke count for your ref. Thanks, Lightbicycle


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Marcus 2019/11/25

looking to build a wheel set with existing dt240s I am looking at your AR28 rim. I am trying to determine the spoke length with only calculators. Since you offer this option, what spoke length are you using please? thank you


LightBicycle 2019/11/26

Hi Marcus, We can do the spoke calculation for you if you like. Could you please provide the details of your wheel build? And, which DT hub model that you use exactly? Note that our ERD measurement is measured from the nipple bed on one side of the rim to the nipple bed on the other. Thanks, Lightbicycle


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James 2019/10/26

I'd like to build a wheelset using your tubeless rims, without rim bed nipple holes. I use 2mm Sapim CX-Ray spokes and brass nipples. Do you recommend a magnetic nipple insert for assembling the nipples? Does one of the Fulcrum Racing tools fit 2mm nipples? This will be my second Light Bicycle wheel build this year. Excellent product! Thank you, Jim


LightBicycle 2019/10/26

Hi Jamies, We published a little article around tubeless rims 700c . Also mention the wheel building tips, you can check it out at https://www.lightbicycle.com/newsletter/TUBELESS-READY-OR-TUBELESS-RIMS--WHAT-S-BEST-FOR-ME.html . And, you are right, you should use magnetic nipples. Please let me know exactly what specs you looking for buying, Do you like 700C disc or non disc rims? Thanks, Lightbicycle


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Timothy 2019/07/22

I own RRU35C02 rims with grooved graphene brake track. Which direction should the grooves face, with closed end or open end toward the direction of rotation?


LightBicycle 2019/07/31

Hi Tim, We sent the instruction through email to you. And we will take your advice and add it in our user guide ASAP. Thanks, Lightbicycle


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Tim 2019/10/24

I am looking for this info as well, what direction should the grooves face


LightBicycle 2019/10/25

Hi Tim, We sent the groove face direction picture of road rims with rim brake to your email. Please check. Thanks, Lightbicycle


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Kendall 2019/10/17

I just purchased a pair of WR50 rims and noticed you have an ERD that does not consider the nipple. I plan to use the standard Sapim 16mm nipples you use and recommend. What is the proper adjustment to the ERD with that rim and nipple combination that I would put into a spoke length calculator? Thanks.


LightBicycle 2019/10/18

Hi Kendall, Nipples with standard heads - Most online calculators can use our standard ERD dimension to get an accurate spoke length. Round up to the nearest mm when the calculator gives you the spoke length. Nipples with raised heads (Hex, Squorx, Double Square etc.) - Add 2mm to our ERD dimension. Round up to the nearest mm when the calculator gives you the spoke length. Or you can let us know your hubs specs on WR50 32mm wide wheelset, then we can get the spoke length accordingly for your reference. Thanks, Lightbicycle


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