Super heavy duty 26” 48 hole wheel with son dynamo

[ourclarioncall]

I’m thinking of an overbuilt wheel set with front dynamo hub

I’m struggling to find any 48 hole ryde Andra rims

What are my other options for heavy duty tandem wheels , rim brakes ?

Pre-empting questions- Coz I’m fat and I get satisfaction from heavy duty even tho I know 32/36 hole is prob sufficient . I like bomb proof -ish .

[RonS]

Velocity make 48 hole 26in rim brake rims. The Cliffhanger is one of the most heavy duty rims available.
They are in USA so I don’t know about availability in your area.
And they are expensive.
Sun Rhyno Lyte are also listed in 48 hole. I have these on my Raven in 32 hole and they have been reliable for fully loaded touring.

Good luck in your search.

[PH]

I think any 48H rim is going to build a strong wheel, the more spokes the less you're asking of the rim.  I think you're right to describe it as overbuilt, but your choice. Have you got the hub? 48h dynamo hubs are pretty rare and hence expensive. 
The Sun CR18 comes in 48h, it might be a bit narrow by todays standards, 18mm as the name suggests, which is OK for tyres up to 40mm, but probably ideal at 35mm.  These used to be Thorn's rim of choice (Though not 48h) before the Andra's came along.  My Raven came with them, they were fine, though the braking surface wasn't particularly long lasting.
At the other end of the width spectrum, there's a 48h Halo rim that's popular with trick MTB'ers and trials riders, but at 30mm it's probably too wide for your usage, the minimum tyre width is probably 40mm, maybe 45 -55 as ideal.
For a width comparison, the Adra 30 is 19mm and the Andra 40 is 25mm. Optimising the correct tyre width for the rim will give the wheel an easier life, probably as important as outright strength. 

[Dunroving]

Velocity make 48 hole 26in rim brake rims. The Cliffhanger is one of the most heavy duty rims available.
They are in USA so I don’t know about availability in your area.
And they are expensive.
Sun Rhyno Lyte are also listed in 48 hole. I have these on my Raven in 32 hole and they have been reliable for fully loaded touring.

Good luck in your search.

Upvote here for Velocity Cliffhanger rims. I had a set of these built last year, with Bitex hubs, 26", tubeless, rim brake build. Excellent rims and wheels. Rims purchased from DCR Wheels in the UK, who also sell Bitex hubs (I got my Bitex hubs from Spa cycles, though).

[Danneaux]

Optimising the correct tyre width for the rim will give the wheel an easier life, probably as important as outright strength.

Thank you for pointing-up this often overlooked factor in wheel strength, Paul.

It becomes ever more important the greater the mismatch and as pressure increase. A "too wide" tire mounted on a "too narrow" rim can create tremendous lateral forces at the bead seat, enough to split the rim across the center.

If the rider is heavy and/or carries a heavy load of cargo, then higher pressures are required and the tire/rim match becomes more important to avoid failure.

Also often overlooked, thought the contribution is comparatively minor: Increased rim width also adds overall air volume.

For those who are interested...
https://www.elite-wheels.com/news/bicycle-wheel-rim-width-and-performance/

Correctly matching rim and tire width (to the degree possible) is generally regarded as affecting handling through tire profile. However! As with most things, there are contrarian views worth considering...
https://www.renehersecycles.com/myth-18-wide-tires-need-wide-rims/?srsltid=AfmBOor5Pbu9G2cYVVYvzVjONGCOwGV2MjlZ_eQ4Yu8cMLdIgoF7Z9qK
...bookended by...
https://fitwerx.com/how-bicycle-rim-width-effects-tire-width-and-contact-patch/

My greatest mismatch is running a set of 37mm Panaracer Paselas on Mavic MA-2 rims with an inner width of 13.5mm...but I only pump them to about 4bar. No problems with this combo to date. In the mid-1980s, Pete Bontrager successfully cut-down and re-rolled MA-2 rims to mate with wide MTB tires at low pressures...
https://www.mtbnj.com/forum/threads/vintage-bontrager-mavic-ma-2s.31316/
https://rec.bicycles.tech.narkive.com/2KNzdacS/mavic-ma2-rim-info-maximum-tire-width

Regardless of tire-rim width combo, I still prefer to settle around an air pressure that allows for about 15% rim "drop" under my intended load. This takes into account the overall weight of myself, the bike, and whatever load is on it. I've found this works well for my comfort, good handling and tire/rim longevity. Lots can be found in a Forum search for "tire pressure" and "Berto" (Frank Berto, who published a study on tire pressure after consulting with various makers). For a quick look on related issues, see...
https://thorncyclesforum.co.uk/index.php?topic=3798.msg16408#msg16408

Best, Dan.

[mickeg]

Most of the weight is on the rear wheel.  When I built up my light touring bike, I used 32 in front and 36 in rear.

If you want it to be that strong, what spokes are you using?

[ourclarioncall]

thanks guys, its such a blessing to be able to come. on here and get such great info so quickly, its really appreciated

I got out of the bike loop for quite a while with life issues but inspiration coming back again, ive forgotten so much that was fresh in my mind. about bike specs etc. I tend to think out loud and. like to explore ideas. I often get 75% off the way forward but have to come back to revisit and revise the data

im not interested in speed, just strength, reliability and comfort. most of my. riding would probably not be loaded up with much weight but nice to know it can handle it if I want it.



mickeg, oh yeah rear wheel takes the weight, good reminder. im clueless on spokes

Danneaux, always love hearing detail and science, good food for thought

Dunroving, I had a look on their site but could only see "Velocity Chukker – Rim Brake or Disc Brake". but I think they could order in from usa whatever you want

PH, I have sun ryhno rims about an inch wide......but after reading "the Adra 30 is 19mm" im guessing its not 25mm but closer to or even could be the sun cr18 as its an older thorn bike. im assuming 18 means 18mm

I have Schwalbe marathon plus tour 26 x 2.00 which I assume is two inches? so 50mm? I like tractor vibe and a tyre on all year round that can cope with most weather or road/trail conditions so that's interesting about the 30mm halo rim. doe wider rim equal stronger or....potentially stronger?

no I don't have a hub. I think I did a ton of research that I have saved, and last thing I remember thorn sold a son 48hole dynamo, but that might not be available now. im not totally fixed on having a dynamo, but I like the idea

RonS, thanks mate, I had a look in uk but can't see any 26" 48h, but think any bike shop could order them in from usa . can't buy them direct from website

[ourclarioncall]

PH

this looks like the ones you mention. the only ones in 48H

https://www.halowheels.com/shop/components/rims/sas-26-rim/

yeah im pretty sure I saw these in the past on one of my mega researchfests

[Dunroving]

thanks guys, its such a blessing to be able to come. on here and get such great info so quickly, its really appreciated

I got out of the bike loop for quite a while with life issues but inspiration coming back again, ive forgotten so much that was fresh in my mind. about bike specs etc. I tend to think out loud and. like to explore ideas. I often get 75% off the way forward but have to come back to revisit and revise the data

im not interested in speed, just strength, reliability and comfort. most of my. riding would probably not be loaded up with much weight but nice to know it can handle it if I want it.



mickeg, oh yeah rear wheel takes the weight, good reminder. im clueless on spokes

Danneaux, always love hearing detail and science, good food for thought

Dunroving, I had a look on their site but could only see "Velocity Chukker – Rim Brake or Disc Brake". but I think they could order in from usa whatever you want

PH, I have sun ryhno rims about an inch wide......but after reading "the Adra 30 is 19mm" im guessing its not 25mm but closer to or even could be the sun cr18 as its an older thorn bike. im assuming 18 means 18mm

I have Schwalbe marathon plus tour 26 x 2.00 which I assume is two inches? so 50mm? I like tractor vibe and a tyre on all year round that can cope with most weather or road/trail conditions so that's interesting about the 30mm halo rim. doe wider rim equal stronger or....potentially stronger?

no I don't have a hub. I think I did a ton of research that I have saved, and last thing I remember thorn sold a son 48hole dynamo, but that might not be available now. im not totally fixed on having a dynamo, but I like the idea

RonS, thanks mate, I had a look in uk but can't see any 26" 48h, but think any bike shop could order them in from usa . can't buy them direct from website

It's worth contacting Tom at DCR, he was very helpful with my Velocity Cliffhanger order.

I note that the SAS rims you've linked to below are not tubeless compatible. The Cliffhangers are tubeless compatible, rim brake compatible, if that makes a difference.

[ourclarioncall]

anyone remember a bike that had like a heavy duty hub that was like even spokes each side , and tandem strength. sorry I don't have the terminology to describe it right

like the spokes are normally different lengths on each side of the wheel on the rear? but these were designed to be even or something

[mickeg]

anyone remember a bike that had like a heavy duty hub that was like even spokes each side , and tandem strength. sorry I don't have the terminology to describe it right

like the spokes are normally different lengths on each side of the wheel on the rear? but these were designed to be even or something

Are you talking about dish?

Is this for a derailleur bike?

What do you have for a rear wheel?

Tandems often use 40 or 48 spoke wheels.

[PH]

no I don't have a hub. I think I did a ton of research that I have saved, and last thing I remember thorn sold a son 48hole dynamo, but that might not be available now. im not totally fixed on having a dynamo, but I like the idea

To be blunt, looks like you'll spend three times more than you need to on the hub, in order to have more spokes than anyone thinks you need.  It's your money to burn of course, but you can get a lot of bike bling for that.

[ourclarioncall]

very good and helpful point , thanks mate.

well I guess the rear tyre takes the most weight, so the front doesn't need to be 48h

[ourclarioncall]

[/quote]

Are you talking about dish?

Is this for a derailleur bike?

What do you have for a rear wheel?

Tandems often use 40 or 48 spoke wheels.
[/quote]

im not sure

my data I provided was poor, need to think about it

it was an American or Australian bike maker and I think the spokes on the rear wheel were even lengths making it stronger

[PH]

well I guess the rear tyre takes the most weight, so the front doesn't need to be 48h

Not just that, but the dish with a cassette means the other side of the wheel is taking most of the stress.  That's why a Rohloff hub, without dish, if fine in 32H.  Not so long ago, maybe the 80's, nearly all British bikes came with 32 front and 40 rear.