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Comments on Recon RIM RM650BC09

XC 650B mountain bike hookless 27mm wide cross country rim tubeless compatible

J

Jesper 2021/06/29

Hi Looking to build a lightweight XC wheelset for my daughter 11yrs under 35kg She does XC racing on national level, will the RM650BC09 flyweight 28h do the job?


LightBicycle 2021/06/29

Hi Jesper, For your daughter, it is okay to ride RM650BC09 650B flyweight 28H. She is a light rider. May i know her current bike model and tire width? Thanks, Lightbicycle


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P

Preston 2020/12/13

Hi. Max tire pressure says 40psi, but you seem to quote 80psi for max pressure on these rims. Which one is it?


LightBicycle 2020/12/15

Hi Preston, We've updated a more detailed and compatible tire pressure recommendation chart so the pressure is more fitted for your riding condition than a rough range. https://www.lightbicycle.com/newsletter/Tubeless-Tire-Pressure-Charts.html Thanks, Lightbicycle


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A

Adam 2020/07/02

Hello, I see the flyweight version has max weight 90kg. Would it be ok as front wheel for gravel riding/bikepacking with higher spoke count? The system weight with me would be around 90-95kg. I would like to offset dynamo weight with rim a bit. Thanks. Regards, Adam


LightBicycle 2020/07/03

Hi Adam, The flyweight rim 650B can use on the front with higher spoke count like 32H. 95kg would be ok. But we don't recommend using the flyweight version for the rear wheel. You need the rear wheel to be strong. Thanks, Lightbicycle


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A

Alessandro 2018/11/17

Hi, I'm thinking about building a pair of wheels with these rims in the next few months. They will be mounted on my, let's call it, dirty rando. It's my only road bike (be it tarmac or gravel roads), it's got a light steel frame and fork with disc brakes and I use it for daily training and commuting as for long or multiple day rides, on every kind of road, always carrying a front bag and rack (typically with a load not exceeding a pair of kilograms) and rolling on 42mm or bigger tires. Oh, and I weight about 55kg. This new wheelset will be used mainly on paved roads, but may hit some easy dirt ones every once in a while. The hubs I will be using for this wheelset are made in 24 or 28h only. So, the rear wheel will be 28 spokes, but I'm unsure about the front one: I usually prefer high spoke counts, but I also prefer to have more spokes on the rear than on the front, as I think that the same spoke count front and rear either means that the front is overbuilt or the rear is underbuilt, so having a little less spokes on the front makes for a more balanced wheelset. If it was possible, I would build them 32/28h, as these wheels will roll for many miles a year (hopefully for many years too) and despite my light weight and the prevalent paved use, they will likely take quite a beating. So, do you think that 24 spokes would be enough for this rim on the front wheel, considering my light weight but also the heavy use and the front load? Will they be enough to build a strong and stiff but still comfortable front wheel, that will be unlikely to have problems during a long night ride in the middle of nothing, or should I play it safe and go for a 28 spokes build on the front too? Thanks for your attention and sorry for the long question, and my terrible english (hope it was not so bad to be hard to understand...!)


LightBicycle 2018/11/20

Hi Alessandro, Glad you can describe your question in details. It really helps! I would recommend our RG722 (29mm wide, 36mm deep) gravel rims for you. You 42mm tires would work well on the rims. The deeper profile makes the wheelset stiffer. The rim was designed for gravel riding, so it would be strong enough for most road ridings. Since you are a light rider and don't really do much aggressive riding like jumps. I think 24H on the front would be strong enough. But you can also go with 28H to ensure the durability. You can get a 5% discount now for the Black Friday discount. You might notice that those two rims are with different rim profile. RG722 is with hooked design, while RM650BC09 is with the hookless design. The rim you were looking at is our MTB rim RM650BC09, it's with hookless design, which requires running under 80psi. It won't be a good choice if you are riding higher pressure during road rides. Thanks, Lightbicycle


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Alessandro 2018/11/25

Thanx for your kind and detailed answer. It's quite obvious now for me that 24 spokes up front will be enough on this wheelset, so I'm going for it. Thanks also for the suggestion about other rim options that might be good for me. However, I think I'll stick with the RM650BC09, as given the wide tires I use and my light weight, a pressure under 45psi is more than enough even for the smoothest tarmac. I would prefer an hooked profile to be honest, as I've had some tire pinching problems on my mtb on rocky descents with hookless rims mated with light supple tires (and rigid front and rear ends), but on tarmac or gravel roads there won't be many occasions to bottom-out the fat tires I use, so maybe I will be able to enjoy the pros of hookless rim design without its cons, finally. So it looks like there's no reason to take that 60 grams penalty. So once again thank you very much, sadly I won't be able to enjoy your black Friday discounts, but at least I know which rims I will be using and how to lace them.


LightBicycle 2018/11/26

Thank you for your reply. If it is just for gravel riding, you will not need to add rim weight. Do you like RM650BC09 flyweight version in 24H? Do you need us to work on invoice for you or you place the order through our website directly? Thanks, Lightbicycle


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B

Bill 2018/09/13

Hi- Do either RM650BC09 Standard or RM650BC09 Flyweight support rim brakes? THanks-


LightBicycle 2018/09/14

Hi Bill, Are you looking for MTB rims or road rims? The model RM650BC09 is for MTB use only. If you are looking for rim brake rims ( with brake track). You can check out our road rims instead. Thanks, Lightbicycle


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S

Scott 2018/09/05

Hi there, Are you able to supply and build mtb wheels with extralite branded hubs? Kind regards - scott


LightBicycle 2018/09/06

Hi Scott, Yes, we have built 650B wheelset with extralite hubs before. What configuration do you have in mind? Do you like fron 15*100mm/rear 12*142mm? Then we can qutoe accordingly for you. Thanks, Lightbicycle


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J

John 2018/01/31

Can these rims be drilled 2mm asymmetrically?


LightBicycle 2018/01/31

Hi John, We can make 2mm offset drilling for RM650BC09. Are you refer to standard version or flyweight version of it? Offset drilling requires adding some material on the drilling hole edge so it can be strong enough to handle angled force. Thanks, Lightbicycle


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J

James 2017/11/02

What width tubeless rim tape do these need?


LightBicycle 2017/11/02

Hi James, Thanks for your inquiry! The rim tape width for RM650BC09 rim is 18mm. Pls find our quotation as below. RM650BC09: standard, 27mm wide, UD matte 32H, USD163 each Rim tape: 18mm, USD6 one roll Thanks, Lightbicycle


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J

J 2017/03/19

Would these work for a cannondale slate gravel bike with lefty fork? If so, can you give me a price for a build with appropriate hubs?? :)


LightBicycle 2017/03/20

Hello Janice, Thanks for your inquiry. Yes, our 27mm wide 650B XC wheels will work with Cannondale lefty fork. Is your rear hub with standard 12*142mm thru axle? Then we can quote accordingly for you. Thanks, Lightbicycle


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A

Alex 2017/02/28

Hi there Could you provide a price to build these with DT Swiss 350 Straight-Pull centre-lock disc hubs 15x100 & 12x142 - preferably 28 spokes. Shimano hub, alloy nipples. Regards, Alex


LightBicycle 2017/02/28

Hello Alex, Thanks for your inquiry. The 28mm wide 46mm hookless wheelset built with DT 350 disc hubs and Pillar x-tra 1420 aero spokes is $745/pair. Or we have better spokes Sapim cx-ray, and the price is $44 added. The hookless version is designed with low pressure impact resistance in mind. If you are planning to run a tire pressure above 80psi, the hooked version would be a better choice. Thanks, Lightbicycle


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A

Adam 2016/11/03

Hi, I noticed a question on another of your rims, and I have the same question regarding these rims: Is it possible to make them without nipple holes in u-channel, so true UST?


Light-Bicycle 2016/11/04

Hello Adam, Thanks for your inquiry. The 27mm wide 650B rim cannot be drill in UST version. Because the rim is not deep enough for nipples to go through inside while building wheelset. But our rim is tubeless compatible. You can use a rim tape, sealant and tubeless tire. Then it will ride tubeless perfectly. If you still like full UST rim, then go with our RM650BC05. Thanks, Light-bicycle


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E

ernesto 2016/10/14

Would like to know if you can build these RM650BC09 rims in 24Holes with the following Bitex Hubs: BX306FG in 12mm, and BX306R in 12x142m; all with Sapim CX-RAY black spokes and aluminum Polyax nipples.


Light-Bicycle 2016/10/17

Hello Ernesto, Thanks for your inquiry. The 27mm wide 650B mtb wheelset with following specs is $696/pair. -Rims: RM650BC09, 24H/24H, 320 /-15g. -Hubs: Bitex, front BX306FG 12mm/ rear BX306R 12*142mm. With freehub Shimano or Campy? -Spokes: Black, Sapim cx-ray -Nipples: Black, alloy Polyax Thanks, Light-bicycle


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S

Steve 2016/10/12

Your specs say the max tire pressure is 70 psi but you list 40psi as the recommended max cycling tire pressure. What's the difference? I don't understand. Will I be able to mount a 650b Schwalbe G-one 40mm tire to this rim? Thanks!


Light-Bicycle 2016/10/13

Hello Steve, Thanks for your inquiry. The recommended max tire pressure is 40psi. It means that it will be better to run the tire around or under 40psi. Some customers prefer high tire pressure like over 40psi, so that is a max tire pressure limit 70psi. It means that you cannot run the max tire pressure over 70psi. Otherwise, the type will be damaged or blow off easily. The recommended tire width for RM650BC09 is 1.9’’-2.3’’. It will be great if you go with wider tires. Thanks, Light-bicycle


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D

DM 2016/07/26

He Guys, works 650x42B (27x1.75) Tires (Cannondale Slate) with this Rim? Regards DM


Light-Bicycle 2016/07/26

Hello DM, Thanks for your inquiry. The recommend tires width for RM650BC09 is 1.9’’-2.3’’. But the nearby width 1.75’’ is able to work with our rims also. Thanks, Light-bicycle


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V

Vlad 2016/07/04

Добрый день! Планирую купить 2 обода. Нужен совет. Катаюсь быстро по городу и немного по городским паркам. Вес 78 кг. Предпочитаю покрышки 2,35 - 2,5" , 650В. Какой обод вы советуете? сколько спиц?


Light-Bicycle 2016/07/04

Hi Vlad, Thanks for your inquiry. For the 27mm wide 650b rim(RM650BC09), it's OK for 1.9''~2.3'' tires. If you use 2.35''~2.5'' tires, I recommend you 35mm 650b rim(RM650BC05). Is it OK for you? I recommend you 28 hole or 32 hole for the rims. For 3k/12k/UD, it is the outer carbon fiber layer to make the carbon fiber with different outlook. It is only the outer layer different and all the inside carbon fiber are the same. So, the strength & weight is almost the same. 3k/UD & matte are more popular. Thanks, Light-bicycle


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