The wheelbuilding thread

[alcatraz]

The strength numbers (if we assume they're accurate) are not absolute but in relation to crossectional area. A cx-sprint has more area so it will be stronger.

Just estimating here but lets say 25% more area and 8% less strength/mm2.

[bm0p700f]

I forgot about that point. Tempted to write an blog post about wheel myths and other lore.

[Marin]

Basically, all steel has the same stiffness (not strenght!) so you can calculate spoke stiffness using the cross sectional area.

[skitlets]

Many people on this thread will be more familiar with wheel building than the intended audience for these videos, but we just posted two videos of how we lace, tension, and true radial front wheels (the simplest build). Part 1 https://novemberbicycles.com/blogs/blog ... al-tension and Part 2 https://novemberbicycles.com/blogs/blog ... final-true.

This was great. I recently built my first wheelset and made a few mistakes. This will help a lot when I get around to the next pair.

[F45]

Wow, not really ww is it?

[bobones]

Looks like Dura Ace hubs are getting harder to find with the continuing demise of rim brakes so I am thinking about building a set of nice wheels for myself using DA hubs and Light Bicycle rims before they disappear altogether. I would appreciate if someone could review this potential build for errors or gotchas.

Dura Ace 9000 18H Front
Dura Ace 9000 24H Rear
Lightbicycle AR46, Non-disc, high TG, glossy, UD 18H + 24H, 28 wide (21 internal), ERD 568
Sapim CX-Ray 18 x 268mm for 0 cross front silver
Sapim CX-Ray 12 x 272mm for 2 cross DS silver
Sapim CX-Ray 12 x 274mm for 2 cross NDS silver
42 silver brass nipples

Should come in around 1520g for £750 or so.

I weigh around 73kgs and currently ride 50mm deep, 25 mm wide (18.5 int) matte UD rims on Novatech SP hubs with 23 mm Vittoria Corsa Speed tubeless tyres.

Anyone care to comment?

[alcatraz]

It will be a nice wheelset I think. Don't know about those spoke lengths though. Measure twice or three times if you have to, before ordering.

For tubeless you might want to order rims without holes in the rim bed. I'd be tempted to do it but I kind of like internal nipples now.

I'm neither heavy enough nor ride crappy enough roads to really benefit from tubeless.

[jever98]

Looks like Dura Ace hubs are getting harder to find with the continuing demise of rim brakes so I am thinking about building a set of nice wheels for myself using DA hubs and Light Bicycle rims before they disappear altogether. I would appreciate if someone could review this potential build for errors or gotchas.

Dura Ace 9000 18H Front
Dura Ace 9000 24H Rear
Lightbicycle AR46, Non-disc, high TG, glossy, UD 18H + 24H, 28 wide (21 internal), ERD 568
Sapim CX-Ray 18 x 268mm for 0 cross front silver
Sapim CX-Ray 12 x 272mm for 2 cross DS silver
Sapim CX-Ray 12 x 274mm for 2 cross NDS silver
42 silver brass nipples

Should come in around 1520g for £750 or so.

I weigh around 73kgs and currently ride 50mm deep, 25 mm wide (18.5 int) matte UD rims on Novatech SP hubs with 23 mm Vittoria Corsa Speed tubeless tyres.

Anyone care to comment?

Your erd is off. Light bicycle gives 548 and I measured 552.4 with the Musson method (includes nipple head and in my case spoke washers).

[bobones]

Your erd is off. Light bicycle gives 548 and I measured 552.4 with the Musson method (includes nipple head and in my case spoke washers).

Thanks, not sure where I got 568 from!

If I am using 548 and get 264.9 and 262.7 for rear, and spokes are only available in even lengths, am I better to round up to 266 and 264 or round to nearest even of 264 and 262?

I am thinking thin CX-rays (like lasers) will stretch a little so rounding down to nearest even will be fine.

On the otherhand, with aluminium nipples, it's better to be a little too long than too short to support the nipple head properly.

[alcatraz]

I am thinking thin CX-rays (like lasers) will stretch a little so rounding down to nearest even will be fine.

On the otherhand, with aluminium nipples, it's better to be a little too long than too short to support the nipple head properly.

Bingo! These are issues I still struggle with.

I have a system now that I measure my ERD myself and add my own little "offset" that I've found to measure consistently.

Using other ERD measurements is a gamble.

Also straightpull hubs with eyeballed measurements is also a gamble. Using a spoke length calculator/chart that's new to you, is a gamble.

I find peace in not rushing and ordering good value spokes like CN424 (taiwanese cx-ray's) and know it won't cost a fortune to get the right length should I have made a mistake. They're only 1 usd each. 4.2gr, reliable etc. Can't fault them. I've broken nipples and had spokes twist but never break. Even after reusing them. I'm really impressed.

[alcatraz]

dp

[bobones]

Cool, thanks. I'll check those out those CN 424s. Do you get yours on AliExpress, and how long do you wait for delivery?

[alcatraz]

I live in China so I get them from some chinese seller that imports them from Taiwan.

If you find cx-ray/pillar1420/cn424 for a good price they're all pretty much equivalent.

[jever98]

Your erd is off. Light bicycle gives 548 and I measured 552.4 with the Musson method (includes nipple head and in my case spoke washers).

Thanks, not sure where I got 568 from!

If I am using 548 and get 264.9 and 262.7 for rear, and spokes are only available in even lengths, am I better to round up to 266 and 264 or round to nearest even of 264 and 262?

I am thinking thin CX-rays (like lasers) will stretch a little so rounding down to nearest even will be fine.

On the otherhand, with aluminium nipples, it's better to be a little too long than too short to support the nipple head properly.

I use several spoke calculators and compare. Musson's and DT Swiss give calculated lengths and account for spoke thickness

[Aeo]

Looks like Dura Ace hubs are getting harder to find with the continuing demise of rim brakes so I am thinking about building a set of nice wheels for myself using DA hubs and Light Bicycle rims before they disappear altogether. I would appreciate if someone could review this potential build for errors or gotchas.

Dura Ace 9000 18H Front
Dura Ace 9000 24H Rear
Lightbicycle AR46, Non-disc, high TG, glossy, UD 18H + 24H, 28 wide (21 internal), ERD 568
Sapim CX-Ray 18 x 268mm for 0 cross front silver
Sapim CX-Ray 12 x 272mm for 2 cross DS silver
Sapim CX-Ray 12 x 274mm for 2 cross NDS silver
42 silver brass nipples

Should come in around 1520g for £750 or so.

I weigh around 73kgs and currently ride 50mm deep, 25 mm wide (18.5 int) matte UD rims on Novatech SP hubs with 23 mm Vittoria Corsa Speed tubeless tyres.

Anyone care to comment?

Are you aware of this: https://forums.mtbr.com/attachments/whe ... ers_v2.pdf