Sub 1300g Semi-Wide Carbon 29er Wheelsets?

Discuss light weight issues concerning mountain bikes & parts.

Moderator: Moderator Team

Jmdesignz2
Posts: 272
Joined: Tue Jan 13, 2015 2:27 am

by Jmdesignz2

I weight about 135lbs without gear and 145 with

I've been riding Notubes Race Gold 29er wheelset 2x10 and want to try a carbon wheelset

The lightest I have found are Light Bicycle WM29CO6 at 1450g +/- 25g (!) (without tape/valve stems?)

Don't want to go heavier than 1390g with tape/valve stems
would be nice to find/build sub 1300g with tape/valve stems

Anyone have leads on others? Prefer sub $800

TheRookie
Posts: 926
Joined: Wed Jan 18, 2012 4:23 pm
Location: Midlands, United Kingdom

by TheRookie

MT Zoom lightweight vales with electrical insulating tape (about 13-14g/wheel), 1.5mm butted spokes such as revolutions and lightweight hubs such as Tune or Extralight
Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



Marin
Posts: 4035
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

My lightest road rim brake carbon clincher set weighs 1215g, at 23mm external width. I doubt you can reasonably go sub-1300 for MTB.

User avatar
the_marsbar
Posts: 1051
Joined: Wed May 13, 2009 5:23 pm
Location: Denmark
Contact:

by the_marsbar

You can easily go sub-1300 for MTB wheels (if price is not a concern).

My current MTB wheelset weighs around 1350 grams. Mcfk rims (24.5 mm internal width, 35 mm external), Lefty/DT Swiss 240s hubs, and 28 Sapim CX-Ray spokes. They've been solid for me so far (I weigh around 70 kgs). If I had chosen other hubs I could have easily managed sub-1300.

Bike-Aheads has a wheelset (27 mm internal width) which has a claimed weight of 1189 grams.
Last edited by the_marsbar on Thu Nov 26, 2015 4:25 pm, edited 1 time in total.


Jmdesignz2
Posts: 272
Joined: Tue Jan 13, 2015 2:27 am

by Jmdesignz2

Valor 29er is 1342g so not sub 1300 and $1900 so not sub $800

stuka666
Posts: 296
Joined: Fri Apr 29, 2011 3:28 pm
Location: portugal

by stuka666

You can go for a light front hub (I have an extralite, 85 grams), a rear novatec is 280 grams.

Those rims are 360 grams a piece, so 720 (750 max?) grams.

That puts us on 1.115 kg, if you use 64 spokes of dt swiss revolution, that adds 288 grams, making a total of +/- 1400 grams, give or take for the nipples.

Less weight than this, for less money.. it's going to be hard.. if you use just 56 spokes, that will lower the total weight in 36 grams.

So, if you use 28x28 spokes, put more money on the spokes and go for the cx-ray.. sub 1390 with tape and light valves is possible.

TheRookie
Posts: 926
Joined: Wed Jan 18, 2012 4:23 pm
Location: Midlands, United Kingdom

by TheRookie

I agree, about 1450g is possible on that budget, with a bit of luck you may squeeze a bit more out of it by making some savings in some places to spend for weight savings in others.

I was lucky and built my 26" 1430g wheelset for sub $300 by getting rims and front hub at a steel of a price.
Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956

bm0p700f
in the industry
Posts: 5777
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
Contact:

by bm0p700f

The way I would do it is with LB tubular 29er rims 24H, CX-ray spokes and alloy nipples and the DT Swiss 240 hubs SP. Extralite hubs would save more weight. Total weight would be 1290g with the DT hubs.

I built mine in 28F/28R and then realised they are over built.

Tubs work just fine. I ride MTB tubs all the time. Currently I have Geax Saguro's which are a bit heavy at ~780g (although all in but I have much lighter Dugast fastbirds which are 650g).

I know there are lighter tyres like racing ralph's or conti race kings but these are useless in the mud and the Geax tyres cope really well.

Marin
Posts: 4035
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Wouldn't you be ligher overall with a clincher/tubeless setup?

bm0p700f
in the industry
Posts: 5777
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
Contact:

by bm0p700f

The rims are 330g each most carbon clinchers are getting on for 415g or more (unless I really spend on ENVE M50 at 370g a piece but these are a bit narrower than I like but that's another debate). Also a conti race King race sport in 29er will be about 550g (add sealant and valve and that goes up to about 610g per tyre) but the puncture protection is rubbish and it turns into a ball of mud quite quickly and jams up my bike.

An equivalent tyre to the geax saguro tub would be the Conti X-King Protection in 2.2" but this is rubbish in the mud unlike the saguro. These weigh 620g so are lighter than the saguro's but add sealant and valve and that weight will be more like 680g. but the Dugast tyres are 650g and add 25g of glue and I have a lighter overall setup.

I would have to use the Conti Mountain King Protection to get a tyre that performs like the Saguro tubular and these are 740g add sealant and it will weight more like 800g.

so I could have a lighter set up with tubeless but it would rubbish at this time of year. I do run tubeless more in the summer months where the race kings get used but only when the ground is dry.

My ideal tyre for this time of year is the conti Mudking 1.8" but these are 770g (with sealant and a valve more like 830g) but at least the cope with the slippy stuff well and there was alot of that on wednesday.

For the OP's budget tubular is the only way I can think of to get a stiff wheelset that is under 1300g that will last. The tyre's will cost a bit though.

Jmdesignz2
Posts: 272
Joined: Tue Jan 13, 2015 2:27 am

by Jmdesignz2

I have American Classic hubs I can use for the build...

TheRookie
Posts: 926
Joined: Wed Jan 18, 2012 4:23 pm
Location: Midlands, United Kingdom

by TheRookie

The problem is that the AC hubs won't get you below 1300g and it is the hubs you need to go expensive on to get there.

You may 'just' do it with 28spokes and using a higher cost rear hub.

Or sell the AC hubs and add the money into the pot!
Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956

zirinpio97
Posts: 43
Joined: Fri Dec 19, 2014 2:09 pm

by zirinpio97

Wr Compositi rims + Extralight hubs .

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



scant
Posts: 270
Joined: Fri Apr 30, 2004 2:05 pm
Location: S.Wales UK

by scant

bm0p700f wrote:The rims are 330g each most carbon clinchers are getting on for 415g or more (unless I really spend on ENVE M50 at 370g a piece but these are a bit narrower than I like but that's another debate). .


I weighed the LB carbpn xc 29er clincher rims at 350g each. as you say these are fairly narrow rims, but the difference between clincher & tub rims isnt as big as it used to be.

Post Reply