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Discussion Starter · #1 ·
Been scratching my head trying to figure out how to lower the weight of the bike a bit. I don't know how much further I want to go with it.

Mostly XC riding, and in the flatlands at that. But under my 200 pounds. (I'm working on that, but that's for a different forum) Semi slicks are out, I want full knobs, and the frame stays.

I did verify the weight and it agreed with the spreadsheet.

JmZ

So here goes:



Bar Ends:
Bar Tape: Nashbar Bar Wrap 50
Bottle Cage: Catamount Cat Cage* 60
Bottle Cage Bolts: Alloy Blue* 2
Bottom Bracket: Race Face Taperloc* 222
Brake Levers: Avid Ultimate 152
Brakes Rear: Avid Disc with 140mm Hope Floating Rotor & Ti Bolts 283
Brakes Front: Avid Disc with 160mm Hope Floating Rotor & Ti Bolts 296
Cables / Housing: Standard 220
Cassette: Shimano XT 11-28 (8 Speed)* 248
Chain: Sram 8 Speed 310
Chain Guard: Lizard Skin* 14
Crankset: Race Face Next* 605
** - Crank Arms: Compact 5 Arm Square Taper
** - Crank Bolts: 27
** - Outer Ring: Race Face*
** - Middle Ring: Race Face*
** - Inner Ring: Ti*
** - Ring Bolts: Alum & Ti*
Derailleur Front: LX 138
Derailleur Rear: XTR* 230
Fork: Marz Marathon 80 (2003)* 1633.8
Frame: Ventana El Feugo 2736.0
Grips:
Handle Bar: Scott AT-2 LF* 185
Headset: Chris King 97
Headset Cap/Bolt: Custom Engraved Lightweight* 6
Headset Spacers: Carbon 4
Pedals: Crank Bros Egg Beaters SL* 274
Quick Releases: Bolt On Steel* 30g/34g 64
Rear Shock: Fox (With Frame Weight)
Seat: Vetta* 192
Seat Binder: Stock Part of Frame Weight
Seat Post: Salsa Shaft 410mm* 290
Shifters: Paul Mounted Ultegra 8* 132
Stem: Syntace F99 135mm* 119
Tire Front: Ritchey Z Max 2.35 566
Tire Rear: Ritchey Z Max 2.1 WCS 450
Tubes: Ritchey Lightweight Tubes* 232
Wheel set (Front): WTB-WS DB-Sun UFO 690
Wheel set (Rear): WTB-WS DB-Velocity 866
Wheel Set (Entire):
* - Rims:
* - Spokes:
* - Nipples:
* - Hub Front:
* - Hub Rear:
Misc Option: Rollamajig, Rim Tape, Fork Boots 17

25 3/16 11410.8
25.16


4/30/09 Measured 25 lb 2 oz after parts changes (Ti Bolts on Brakes, new tires) 25.14
 

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you can change this parts:
Seat: Vetta* 192 -> heavy
Tubes: Ritchey Lightweight Tubes* 232 -> heavy, convert to tubeless
Fork: Marz Marathon 80 (2003)* 1633.8 -> heavy
you can save about 500g here.
If you want to spend more money you can get a lighter frame.
And dont forget to lose some weight on yourself.
 

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Discussion Starter · #6 ·
Thanks for the suggestions.

For forks, I know the one I want but can't stomach the cost for a GA Kilo. That alone would lose about 300g if the numbers I saw were right. I steer away from RS stuff - bad memories, don't know what else out there is worthy to look at right now.

Seatpost - need something with about 20mm of setback, and not confident with carbon. That limits my options. I'm looking at pretty much Ti -high cost, maybe 50g savings.

Chain - Will 9 speed chains play nice with 8 speed parts? And likewise, would consider a SRAM 850 or whatever it's called currently (about 15g lighter than the XT, but it'll eat into the WTB hub. Will the new AC Freehubs work with the WTB hubs?)

Seat - Have a new one on the way, but comfort takes a higher place than a few g's this time. The Vetta's have worked well in the past. If I can get one of the Vetta's stored away recovered it'll drop about 30g or so, if recovering it doesn't add any weight.

Crankset - I'd have to be looking at a sub 850g bb/crankset assembly to make it worthwhile. That's XTR/RF Next level if I'm correct.

Tires - The 2.3 is a faily new thing on the front, heck so is the 2.1 on the rear. Was used to running 2.1 (or 1.9) on the front, and 1.9's on the rear, but the rocks were I was riding almost demanded a larger tire.

Wheels - Dinged up the rear rim pretty good - (a new one will be laced at the end of the season, if not sooner). My threshold is probably pretty close, takes a while for me to hurt the wheels, but between the 4 parts, I wonder where it's safe to shave - hubs - probably but costly, spokes, not much here, I'd lean to X-Rays or Supercomps, spendy or not much weight lost, nips, nothing there, and rims. Some decent potential, but would I be going through multiple rims a season? If I do go that route, will need something that violates Bontragers law - light, cheap, strong - pick two.

Might also look at Brake Levers - considering something like Paul's. Not the lightest, but another 30-40g. Can probably justify that spending too. :)

ME - My frame looks gaunt at 175. I get people (who don't know me) asking if I'm sick at that weight. My real living weight should be 185 or so. That leaves me some, but not that much weight to drop there. And already working on that one. Many, many nights on the trainer... bleh.
 

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the train keeps rollin
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Hi Jim, I've used 9spd chains on 8spd cassettes with no problems. I think the issue is front chainring thickness. 8spd chainrings are slightly thicker, needing the wider chain. If your rings are 9spd, no worries.

9spd Chainrings, 9spd Chain, 8spd Cassette = OK

8spd Chainrings, 9spd Chain, 8spd Cassette = Problem, chain may not seat on the chainrings.
 

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JmZ said:
Seatpost - need something with about 20mm of setback, and not confident with carbon. That limits my options. I'm looking at pretty much Ti -high cost, maybe 50g savings.
You could probably loose about 70-90 grams by switching to a Thomson Masterpiece setback, but they only have 16mm of setback. 20mm is a lot of setback...
 

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I have one of the old Marz Marathon SL 2003 forks. A new SID or F100 will save you ~100grams, and more importantly ride a whole lot better and bob a whole lot less. That and a Stans wheelset gets my vote.
 

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Derailleur Rear: XTR* 230 <--- get a newer XTR RD as they are all same pull ratio
Fork: Marz Marathon 80 (2003)* 1633.8 <--- get a 2010 Fox F80 RLC FIT
Seat: Vetta* 192 <--- there has got to be one lighter that has same profile/shape
Seat Post: Salsa Shaft 410mm* 290 <---- Thomson Masterpiece Setback
Wheel set (Front): WTB-WS DB-Sun UFO 690
Wheel set (Rear): WTB-WS DB-Velocity 866

Get a new custom built wheel set based off of Notubes ZTR Olympics. DTswiss supercomp spokes or Spaim Lasers, and Chris King hubs to match your headset.

are the items most glaring to me.

If you have 50 bucks you can get the new Egg Beater Ti axles from ebay
http://search.ebay.com/_W0QQsassZwardhydQQhtZ-1
(No rider weight limit)
 

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Hack Racer
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2,559 Posts
Derailleur Rear: XTR* 230 <--- get a newer XTR RD as they are all same pull ratio
Fork: Marz Marathon 80 (2003)* 1633.8 <--- get a 2010 Fox F80 RLC FIT
Seat: Vetta* 192 <--- there has got to be one lighter that has same profile/shape
Seat Post: Salsa Shaft 410mm* 290 <---- Thomson Masterpiece Setback
Wheel set (Front): WTB-WS DB-Sun UFO 690
Wheel set (Rear): WTB-WS DB-Velocity 866

Get a new custom built wheel set based off of Notubes ZTR Olympics. DTswiss supercomp spokes or Spaim Lasers, and Chris King hubs to match your headset.

are the items most glaring to me.

If you have 50 bucks you can get the new Egg Beater Ti axles from ebay
http://search.ebay.com/_W0QQsassZwardhydQQhtZ-1
(No rider weight limit)
 

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Premium Member
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Discussion Starter · #12 ·
An update:

Went and did a few updates to the build to bring down the weight. Still have a few things I'm considering, but it's in the right direction, and don't think it'll hurt the durability of the bike any either. :)

JmZ

Changes are in bold with new weights, and verified weight listed.

JmZ said:
Been scratching my head trying to figure out how to lower the weight of the bike a bit. I don't know how much further I want to go with it.

Mostly XC riding, and in the flatlands at that. But under my 200 pounds. (I'm working on that, but that's for a different forum) Semi slicks are out, I want full knobs, and the frame stays.

I did verify the weight and it agreed with the spreadsheet.

JmZ

So here goes:

Bar Ends:
Bar Tape: Nashbar Bar Wrap 46
Bottle Cage: King Cage Ti* 28
Bottle Cage Bolts: Alloy Blue* 2
Bottom Bracket: Race Face Taperloc* 222
Brake Levers: Paul Love Levers 130
Bottle Cage: King Cage Ti* 28
Bottle Cage Bolts: Alloy Blue* 2
Bottom Bracket: Race Face Taperloc* 222
Brake Levers:
Brakes Rear: Avid Disc with 140mm Hope Floating Rotor & Ti Bolts 283
Brakes Front: Avid Disc with 160mm Hope Floating Rotor & Ti Bolts 296
Cables / Housing: Standard 220
Cassette: SRAM 5.0 11-28 8 Speed with alloy lockring* 231
Chain: Sram 991 Hollowpin Speed was 300 now 278
Chain Guard: Lizard Skin* 14
Crankset: Race Face Next* 605
** - Crank Arms: Compact 5 Arm Square Taper
** - Crank Bolts: 27
** - Outer Ring: Race Face*
** - Middle Ring: Race Face*
** - Inner Ring: Ti*
** - Ring Bolts: Alum & Ti*
Derailleur Front: LX 138
Derailleur Rear: XTR 970 Series* 199
Fork: Marz Marathon 80 (2003)* 1633.8
Frame: Ventana El Feugo 2736.0
Grips:
Handle Bar: Scott AT-2 LF* 185
Headset: Chris King 97
Headset Cap/Bolt: Custom Engraved Lightweight* 6
Headset Spacers: Carbon 4
Pedals: Crank Bros Egg Beaters Ti* 237
Quick Releases: Bolt On Steel* 30g/34g 64
Rear Shock: Fox (With Frame Weight)
Seat: Vetta* 192
Seat Binder: Stock Part of Frame Weight
Seat Post: Salsa Shaft 410mm* 290
Shifters: Paul Mounted Ultegra 8* 132
Stem: Syntace F99 135mm* 119
Tire Front: Ritchey Z Max 2.35 566
Tire Rear: Ritchey Z Max 2.1 WCS 450
Tubes: Performance Lunar Lights* 165
Wheel set (Front): WTB-WS DB-Sun UFO 690
Wheel set (Rear): AM Classic WS DB DT 4.2 826
Wheel Set (Entire):
* - Rims:
* - Spokes:
* - Nipples:
* - Hub Front:
* - Hub Rear:
Misc Option: Rollamajig (Removed), Rim Tape (in with wheel weights), Fork Boots (removed for riding) 0

25 3/16 11410.8
25.16

4/30/09 Measured 25 lb 2 oz after parts changes (Ti Bolts on Brakes, new tires) 25.14
No overall scale weight, but from individual part weight swaps, should save about 3/4 of a pound. Still a few things left to do, but it's better. The big thing will be if I can get a decent fork for a good price.

If I can find the G:A fork for a good price (the frame is spec'd to work with the slightly longer A-C), and a few small swaps, should put the frame in the 23 1/2 pound range. I'd be estatic with that for a bike with Avid Mechanicals, and a heavier frame like it has on it.

JmZ
 

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Discussion Starter · #15 ·
Rocky's got it. I'm on cable mechs. It's a respectable weight for a mechanical. I know I'm paying a weight penalty over some of the hydros, but I'm ok with it.

Whole system is 130 + 283 + 296 = 709. And that's including rotors and bolts. Sram's claiming 333g for the front on a Avid Juicy Ultimate, so not a huge penalty for the setup. ( 283 + 65 = 348 & 296 + 65 = 361g)

I know there are lighter hydros, but love the simplicity of the mechanicals.

JmZ
 

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JmZ said:
Bottle Cage: Catamount Cat Cage* 60
Get a Bontrager Race X Lite (26g) or Race XXX Lite (17g) cage... easy savings there... 34-43g...

JmZ said:
Pedals: Crank Bros Egg Beaters SL* 274
Get some eggbeater 4Ti pedals (167g per crank bros website)... or get some 2Ti's and get some spindles from the guy over in the weight weenies thread...(http://forums.mtbr.com/showthread.php?t=548043)

You can save an easy 100g there...
 

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JmZ said:
Chain: Sram 8 Speed 310
Not sure if compatible, but getting a KMC X9 SL (about 270g uncut) or KMC X10 SL (about 245ish uncut) chain will save a bit... at least 40g... maybe up to 65g if the X10 can work...

with the cage and pedals above... that's roughly 210g... almost 0.5lbs.. most of it in rotating mass (pedals, chain).... would have an effect...
 

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JmZ said:
Chain Guard: Lizard Skin* 14
possibly toss the chainstay guard and use the clear stuff or just some electrical tape...
 

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JmZ said:
Tire Front: Ritchey Z Max 2.35 566
Get a Schwalbe Rocket Ron 2.25 Evo... about 445g... major savings right there... and probably better grip too...
 

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Discussion Starter · #20 · (Edited)
Final? Update...

1st that took longer than expected. Bringing back a thread from the dead, I know. 2nd got the bike under 24lbs. I think that'll work for me. Not the lightest out there, but respectable given what I'm comfortable with. Final specs below.

Last change was the Fox fork. Saved almost 1/2 pound there alone.

I did verify the weight and it agreed with the spreadsheet.

So here goes:

  • Ventana
  • Aero Bars:
  • Bar Ends:
  • Bar Tape: Cinelli Bar Wrap* 46
  • Bottle Cage: King Ti Cage* 28
  • Bottle Cage Bolts: Alloy Blue* 2
  • Bottom Bracket: Race Face Taperloc* 222
  • Brake Levers: Paul Love Levers* 130
  • Brakes Rear: Avid Disc with 140mm Hope Floating Rotor & Ti Bolts 283
  • Brakes Front: Avid Disc with 160mm Hope Floating Rotor & Ti Bolts 296
  • Cables / Housing: Standard 220
  • Cassette: SRAM 850 11-28* 226
  • Cassette Lockring: SRAM 970* 5
  • Chain: SRAM 991 Hollowpin* 279
  • Chain Guard: Lizard Skin* 14
  • Computer:
  • Crankset: Race Face Next* 605
  • ** - Crank Arms: Compact 5 Arm Square Taper
  • ** - Crank Bolts: 27
  • ** - Outer Ring: Race Face*
  • ** - Middle Ring: Race Face*
  • ** - Inner Ring: Ti*
  • ** - Ring Bolts: Alum & Ti*
  • Derailleur Front: LX 138
  • Derailleur Rear: XTR (New)* 199
  • Fork: Fox F100 RLC FIT 1424
  • Frame: Ventana El Feugo 2698.9
  • Grips:
  • Handle Bar: Scott AT-2 LF* 185
  • Headset: Chris King 97
  • Headset Cap/Bolt: Custom Engraved Lightweight* 6
  • Headset Spacers: Carbon 28
  • Pedals: Crank Bros Egg Beaters Ti* 237
  • Quick Releases: Bolt On Steel* 30g/34g 64
  • Rear Shock: Fox (With Frame Weight)
  • Seat: Vetta* 190
  • Seat Binder: Stock Part of Frame Weight
  • Seat Post: Moots 380 x 27.2* 235
  • Shifters: Paul Mounted Ultegra 8* 132
  • Stem: Syntace F99 135mm* 119
  • Tire Front: Ritchey Z Max 2.35* 566
  • Tire Rear: Ritchey Z Max 2.1 WCS* 451
  • Tubes: Performance Ultra Light* 165
  • Wheel set (Front): WTB-WS DB-Sun UFO* 700
  • Wheel set (Rear): Am Classic DT Swiss 832
  • Wheel Set (Entire):
  • * - Rims:
  • * - Spokes:
  • * - Nipples:
  • * - Hub Front:
  • * - Hub Rear:
  • Misc Option: Rollamajig (Removed) 0 10849.9
  • 23.9198789907
  • 23.92
 
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