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Real weight of the wheelset: DT240/Crest 29"

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M

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Discussion Starter · #1 · (Edited)
Hi All
I'm planiing to build the new set for racing :
  • Hub rear - DT 240 6 bolt 130mm, 240 grams (claimed)
  • Hub front - Magura 6 bolt 100mm, (166 gr weighted)
  • 2x Crest 29 - 2x 370 grams (claimed)
  • 64x DT competition spokes & alloy niples

And as per couple of different calculators, it seems that the wheelset will be around 1600-1635 grams. Surprisingly heavy i would say....

Are you able to confirm these calculations with your real builds ?
Actually my goal is to acheive something close to 1500 grams, but seems to me this is a bit unrealistic. I'm about 180 lbs (82 kg) fully geared for race.

Feedback welcome!
 
BruceBrown

· Always Learning
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9,593 Posts
#2 ·
maon said:
Hi All
I'm planiing to build the new set for racing :
  • Hub rear - DT 240 6 bolt 130mm, 240 grams (claimed)
  • Hub front - Magura 6 bolt 100mm, (166 gr weighted)
  • 2x Crest 29 - 2x 370 grams (claimed)
  • 64x DT competition spokes & alloy niples

And as per couple of different calculators, it seems that the wheelset will be around 1600-1635 grams. Surprisingly heavy i would say....

Are you able to confirm these calculations with your real builds ?
Actually my goal is to acheive something close to 1500 grams, but seems to me this is a bit unrealistic. I'm about 180 lbs (82 kg) fully geared for race.

Feedback welcome!
Click to expand...
I wouldn't call 1600-1635g wheels "surprisingly heavy" for a 180 lb. racer.:D

Your calculations are about right. I've got DT 240's front and rear with the Crest rims using DT Comp spokes (I'm 180 as well) and with the yellow tape and valves they came out to 1640.





Industry Nine Ultralite race wheels with the Crests and a rider weight limit of 180 weigh
1570g. American Classic tubeless XC race wheels are around 1600-1620g. So the 1570-1640g range is about right for wheels able to support 180 pound riders.

BB
 
1-bar

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1,503 Posts
#3 ·
The weight of the DT Swiss hubs are the same weight at the ZTR hubs. A crest 29er with supercomps and DT Swiss hubs are 1570gms. My 355s with DT Swiss 240s were 1600gms. BB looks like he got a heavier set unless competition spokes weigh 70gms more than supercomps.
 
S

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4,662 Posts
#5 ·
My 240/Crest/Comp wheelset was 1534gr sans skewers, valves, tape. I have an SS rear hub and weigh about 200lbs. No problems. I float like butter except when I crash. I've gone OTB twice. No worries. Trued once last year.
 
culturesponge

· gone for a bike ride
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1,974 Posts
#6 ·
maon said:
Hi All
I'm planiing to build the new set for racing :
  • Hub rear - DT 240 6 bolt 130mm, 240 grams (claimed)
  • Hub front - Magura 6 bolt 100mm, (166 gr weighted)
  • 2x Crest 29 - 2x 370 grams (claimed)
  • 64x DT competition spokes & alloy niples

And as per couple of different calculators, it seems that the wheelset will be around 1600-1635 grams. Surprisingly heavy i would say....

Are you able to confirm these calculations with your real builds ?
Actually my goal is to acheive something close to 1500 grams, but seems to me this is a bit unrealistic. I'm about 180 lbs (82 kg) fully geared for race.

Feedback welcome!
Click to expand...
sounds like a great solid wheelset

those ozzy fleabay magura hubs are alot heavier than the current DT 240s front hub though, but the price is irresistable :)


100mm magura Pro (Hugi/DT 240s old style) 32h 6-bolt front hub


135mm 2010 DT Swiss 240s 32h 6-bolt rear hub
 
BruceBrown

· Always Learning
Joined
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9,593 Posts
#8 · (Edited)
1-bar said:
The weight of the DT Swiss hubs are the same weight at the ZTR hubs. A crest 29er with supercomps and DT Swiss hubs are 1570gms. My 355s with DT Swiss 240s were 1600gms. BB looks like he got a heavier set unless competition spokes weigh 70gms more than supercomps.
Click to expand...
Had Supercomps on my previous wheelset with the same hubs and different rims. Comps this time around per Mikesee's recommendation for these rims and my weight. So far, the additional spoke weight and performance of the spokes have been well worth it for me and my weight.

Yes, the spoke weights are different.

Supercomps are 318g for 64 spokes
Comps are 382g for 64 spokes

So that accounts for 64g difference for 284mm length, so translated up to the 29"er length spokes and there you have the 70g +/-.

BB
 
D

· Missouri sucks...
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2,300 Posts
#9 ·
My last wheelset had Supercomps. I went to Comps for the new build and am much happier. The wheels feel much stiffer, more noticeably, the rear when I'm putting my 7 hampster power to the dirt;) 177lb for the record...
 
meltingfeather

· transmitter~receiver
Joined
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9,321 Posts
#12 ·
1-bar said:
The weight of the DT Swiss hubs are the same weight at the ZTR hubs. A crest 29er with supercomps and DT Swiss hubs are 1570gms. My 355s with DT Swiss 240s were 1600gms. BB looks like he got a heavier set unless competition spokes weigh 70gms more than supercomps.
Click to expand...
stan's site says the spokes they use on that wheelset are 2.0/1.7 double butted, which does not describe S.Comps.
 
M

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140 Posts
Discussion Starter · #14 ·
Folks,
thanks a lot for the information provided.
So in summary, I should really expect to see my new set at ~1600+ grams with alu nipples.
Also i need to expect that DT hub will weight more than 240 grams claimed.

BTW based on the DT Calc - the difference between set set with revo/comp is ~100 grams.
Comp spokes (x64) should weight ~430 grams.
 
ATBScott

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2,596 Posts
#18 ·
I just built a set of these for a customer last week - 1620 grams for the pair and with the yellow tape and valves, 1640 - exact same number as earlier in this thread... This set of wheels was for a 160 lb or so adventure racer/marathon racer who rides trails. If you're smooth and the trails aren't too gnarly - these wheels should be fine for all-round use. If you're jumping a lot or blasting rock gardens, I'd say go with Arch or Flow...
 
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M

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Discussion Starter · #20 ·
ATBScott said:
I just built a set of these for a customer last week - 1620 grams for the pair and with the yellow tape and valves, 1640 - exact same number as earlier in this thread... This set of wheels was for a 160 lb or so adventure racer/marathon racer who rides trails. If you're smooth and the trails aren't too gnarly - these wheels should be fine for all-round use. If you're jumping a lot or blasting rock gardens, I'd say go with Arch or Flow...
Click to expand...
Indeed, I;m a smooth rider and the trails are smooth as well here.
 
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