Light Bicycle wheel rims?

[Beaver]

For a 75 kg rider [165-170 pounds], would you guys recommend a 24 or 28 spoke rear?

24 spokes are enough. If you are a strong person, you can choose CX Sprint (or Aero Comp) spokes on the driveside or even both sides.

[deepakvrao]

For a 75 kg rider [165-170 pounds], would you guys recommend a 24 or 28 spoke rear?

24 spokes are enough. If you are a strong person, you can choose CX Sprint (or Aero Comp) spokes on the driveside or even both sides.

Thanks, and, I wish

[deepakvrao]

For a 75 kg rider [165-170 pounds], would you guys recommend a 24 or 28 spoke rear?

24 spokes are enough. If you are a strong person, you can choose CX Sprint (or Aero Comp) spokes on the driveside or even both sides.

Would you think that 24 is OK even for disc brake wheels?

[Nefarious86]

24 front 28 rear

[Hexsense]

I wonder about optimal spoke count too.
It becomes complicated with disc brake.
While only few people can create high torque that is equivalent to pushing more than 1500 watts in an acceleration.

Almost every disc brake bike slow down faster than you can ever accelerate it.
I don't know how much such deceleration would equavalent to in term of watts but i guess is over 3000.
Does that means if 24 spokes are enough for front, 24 should also be enough for rear?

[jfranci3]

For a 75 kg rider [165-170 pounds], would you guys recommend a 24 or 28 spoke rear?

24 spokes are enough. If you are a strong person, you can choose CX Sprint (or Aero Comp) spokes on the driveside or even both sides.

Would you think that 24 is OK even for disc brake wheels?

I'm running a set of stock DT SWiss R32 (370 SP + Aero Comp SP + locking nipples + 32mm AL Rim) Disc under my 86kg body. They are 24sp, I hit deep pot holes with them all the time, and they are still perfect. I've broken 2008 spec Fulcrum 5 Evo Rim, 2010 spec Mavic Kysium Equip Rim, and two sets of cheap stock Bontrager 24mm alloy disc wheels from my Crockett. If you can do 24/28, do that; otherwise 24/24 is fine as long as you are running locking nipples, good spokes, and using a solid rim. Lower tire pressures and big tires are making a spokes like easier too.

[StevieB]

The Cannondale Knot 64 are 32mm wide and have 21mm inside width - as HED recommends, just pick a tire that is at least 1mm wider than the inner width of the rim. And regarding the stability: Tubeless rims have a different shape than older rims which also helps a lot to keep the tire in place and you don't have to worry about it. I wouldn't put narrow tires on old rims though, e.g. a 20mm tire on an old 19C trekking rim...

Just as an FYI, I see CD have a new KNOT45 wheel listed on the their website, fitted to the newest Synapse HiMod with Red Etap AXS. Same width profile as the KNOT64, but shallower depth. No listed weight yet...

https://www.cannondale.com/en/USA/Bike/ ... e8cf3baf5c

[rides4beer]

Wet braking performance report. I don't usually ride in the rain, but sometimes Mother Nature has other plans. I went out for my first century ride today, weather was absolutely perfect, there was a very slight chance of rain later in the day, but figured I'd be ok. Well that slight chance turned into 100%, and it was a downpour for the last 30 miles of my ride. Braking performance was slightly decreased, as I imagine it is with all carbon wheels, but with just a little extra pressure I had absolutely no trouble stopping and at no time did I feel unsafe. I don't plan to ride on them regularly in the rain (when the weather is bad I just go run instead of ride lol), but it's good to know that if I get caught out there again, that I don't have to worry.

[deepakvrao]

I wonder about optimal spoke count too.
It becomes complicated with disc brake.
While only few people can create high torque that is equivalent to pushing more than 1500 watts in an acceleration.

Almost every disc brake bike slow down faster than you can ever accelerate it.
I don't know how much such deceleration would equavalent to in term of watts but i guess is over 3000.
Does that means if 24 spokes are enough for front, 24 should also be enough for rear?

I just checked out stock wheels which come with canyon, trek, and others. All disc bikes. Dtswiss, Reynolds, bontrager, all are 24/24. Enve and others too. So, sticking to that. Any change may lead to delays and I'm on a tight time schedule.

Sent from my SM-N950F using Tapatalk

[ericoschmitt]

You guys have no reservations about putting a ~25mm tire on a 23mm internal rim? I know ETRTO is a bit outdated but still that seems a little sketchy to me. Light-bicycle kept making it a point to mention that I need to be putting 28mm on the 23mm internal rims but I know my GP4ks will balloon on them.

Check page 3, I've been riding 23 tire on 23 internal rim, no problem. I'm still here

[Beaver]

You guys have no reservations about putting a ~25mm tire on a 23mm internal rim? I know ETRTO is a bit outdated but still that seems a little sketchy to me. Light-bicycle kept making it a point to mention that I need to be putting 28mm on the 23mm internal rims but I know my GP4ks will balloon on them.

Check page 3, I've been riding 23 tire on 23 internal rim, no problem. I'm still here

What pressure did you run at what weight? Can you compare to other inner rim diameters, big difference or not?

[rides4beer]

Tire measurement update for the 46mm rims (21mm internal). 25mm GP5000s grew to 28.2mm after a week or so and 300+ miles . They ride and handle great, but I got some sidewall damage the other day from a pothole, so today I put a set of 23mm GP4KS2s on, they measure 26.1mm, should still be under the 105% rule after they stretch a bit.

[ericoschmitt]

What pressure did you run at what weight? Can you compare to other inner rim diameters, big difference or not?

I'm 62kg, plus bike gear and water another 10.

Been riding with 60 psi most of the time, 80 on race, pumped to 100 after installing but wouldnt ride that high because the gains in rolling resistance are too small from 80 to 100 and that takes too much comfort away.

The only time I rode vittoria CS in another wheel was the 25mm version on a 19mm internal rim for the rear wheel of a fixie in a criterium race. Didnt measure but the 25 looked as big as the 23 on the front 23mm rim.

[Beaver]

What pressure did you run at what weight? Can you compare to other inner rim diameters, big difference or not?

I'm 62kg, plus bike gear and water another 10.

Been riding with 60 psi most of the time, 80 on race, pumped to 100 after installing but wouldnt ride that high because the gains in rolling resistance are too small from 80 to 100 and that takes too much comfort away.

The only time I rode vittoria CS in another wheel was the 25mm version on a 19mm internal rim for the rear wheel of a fixie in a criterium race. Didnt measure but the 25 looked as big as the 23 on the front 23mm rim.

Ok, with bike and gear that would be close to 80kg for me - at the moment I run 21mm internal width with 25mm 4000S II and 58psi front/65psi rear. 23mm tires with that pressure wouldn't be possible even with 23mm internal width. And a higher pressure makes me slower as there are a lot of roads with rough tarmac here.


https://silca.cc/blogs/journal/part-4b- ... -impedance

[deepakvrao]

Got them! I'm in a boring waiting list at bank so I'm writing on phone... More pics in next post, theres a file limit.

Do you still have that box? Possible to take a measurement? I've ordered mine to the US, and will be carrying it back to India on a flight.