HEY WW's. Could you post your FS bike and your groupset and components used.
I am relatively new to the WW world and have been trying to get a light weight FS bike for a while.
I started out a year and a half ago with a 2008 Specialized FSR XC expert and it weighed 29.85lbs. Sold that and bought a medium 2009 Pivot mach 4 XT/XO group this past nov, 3X9. Lots of steep long climbs here in the pacific northwest so I am sticking with 3X9.
The components are as listed.
Fox RP23 rear shock (stock w/frame)
XG-999 11-32 cassette (cant get any lighter for a 3X9 setup)
Deore XT crank (stock)
Forte carve SPD pedals (295g actual/pair)
Sram XO black box rear derailuer
XT front derailuer
Shimano XTR M980 chain.
Nobby nick 2.1 tires (490g listed weight ,on their way)
Panaracer fireXCpro on the bike ATT (at this time) 616g and 626g actual weight
Stans 26 crest wheel set (1440g) running tubeless
Alligator wind cutter rotors (185g/pair actual not including hardware, 160mm)
Woodman Gator-SL Ti MTB Q/R wheel skewer set, blue (60g set). On their way.
Fox float-100 RLC forks (stock)
FSA carbon stem
Truvativ Noir World Cup Riser Bar
Sram XO carbon shifters
Some kind of light weight grips with specialized locking ring (85g total actual weight)
Truvativ team carbon seat post (225g listed)
Origin 8 saddle (240g actual). Will be replaced with;
SELLE ITALIA SLR XP VANOX Rail Flow (on its way, 180g list)
The bike weighed 26.21 lbs before upgrading from crank bros cobalt xc wheelset (1540g), nobby nick tires vs pana, XG-999 cassette vice SRAM PG 990 (330g), alligator rotors, Ti skewers vice stock CB skewers, sella saddle vice origin 8, forte carve pedals vice shimano SPD 540, some kind of chain vice XTR chain and I had all the brake cables and shifter cables shortened due to excessive length.
I will weigh my bike once I get the tires, saddle and skewers in and installed. I figure It will be around 25lbs then. SOOOOOO, I am wondering how the hell are some of you cats dropping 5-7lbs more off your bikes????
For cheap weight savings, what about replacing bolts with Ti. I know I can get rotor bolts for $15 delivered but what else? Just finished spending $1300 the past several weeks so I am trying to keep things affordable ATT.
I know the mach 4 frame is not a light weight but I love the efficiency of the DW suspension. I know I could save 200g getting race face crank, save 1lb getting Magura Durin race forks, Stans podium wheelset etc but still. Some of the weights I have seen for FS bikes are amazing.
So what is on your rig? Pics please. Thanks!!!
Pic of mach 4 is old. Will post new pic when all components are installed
(week or 2 from now)
2009 Mach 4 XT/XO group. Some carbon upgrades w/crank bros. cobalt wheel set.
WOW!!! Thanks for the links. Man, a 21ln FS 29er...just amazing. Your bike is amazing as well. The fact that it is a XL FS 29er weighing in at 25lbs is nice as well.
I dont deserve world class MTB's like Kulhavy's nor does my wallet deserve such punishment.
Thanks again for the reply, links and the pics
2009 Mach 4 XT/XO group. Some carbon upgrades w/crank bros. cobalt wheel set.
I've made a few modifications to my 2011 Epic, size Large - many of them for bike fit reasons.
The frame and wheelset help a lot here - I'm down to 21.42 lbs, or 9.71 kg.
Changes from stock are:
-Ebay carbon saddle (110g)
-Widgit 1X10 crank (32T, 127g - unsure of weight savings over stock 2X10 SRAM XX setup)
-Easton EC90 seatpost (200g vs 270g for stock S-Works single-bolt post, changed for fit reasons)
-Easton EC90 SL bar (139g vs 147 for the stock S-Works bar, changed for fit reasons)
-Ritchey WCS stem (112g for 90mm, vs 124 for stock Syntace, changed for fit reasons)
-Kettle carbon ceramic rotors (95g vs 231g for SRAM rotors)
-ESI Chunky grips (56g vs 104g for Specialized stock Rocca grips)
-DT Swiss RWS skewer (43g vs 53g stock skewer, changed for ease of removal reasons)
-Cane Creek AER headset cover (with series 40 bearing for MTB use - marginal savings over stock FSA headset, but better bearing)
Also moved to Crank Bros Ti pedals (with Ti black end caps - hate the gold), XTR brakes (found the XX WC finicky and hate DOT fluid) and replaced the chain with the KMCX10 SL for wear reasons. Don't have weight deltas for these - I think I probably gained weight with the XTRs, but it's worth it.
I'm still waiting on my rear carbon rotor, so the bike will shed another 40g or so.
Hope that gives you some ideas.
What It Be ?
How those carbon rotors working out for you? Don't think the weight savings is worth the risk. You get a rock up in there and your brake is gone.
You make a great point. There are a couple of threads on the carbon rotors right now, and the big issue is a lack of braking power. So far I don't have a real issue, but I'm only running the front one for now, and I haven't yet tested on any big grades. Apparently using carbon pads (not yet available) help quite a bit.
But yeah, I did wonder how it would handle a side hit on a rock. Shatter? That would hurt the wallet.
Nice looking bike!!
What's your rear cassette? 11-36? How do you like your gearing for XC racing?
Thx. Yep, SRAM XG-1099, 11-36. I don't miss anything on the low end for climbs - the ratios with the 32T up front are just about right for me.
If I'm on pavement (with a bit of downhill, he-he), I'll top out on the high end, but it's not a factor for singletrack. I should have mentioned to the OP that going to a 1X setup is a great way to shed some weight (drop the shifter, FD, a ring), and I don't miss 2X (or previously 3X) at all.
I'm contemplating going 1 X __ on one of my bikes with the Widgit. Have been contemplating for quite some time. I pretty much keep it on the 30T with a 11-34 cassette (very similar to your set up with 32 and 11-36). Even more weight savings, I could go to the 28T Widgit and use the fancy SRAM 11-32 9 speed cassette that weighs only 175g. Again, same gear as you on the granny side of things with a 28 X 32 rear cog, but I would lose the same gain ration that you have for the 32 x 11T cog. As you said, not a big deal on singletrack. But on pavement or gravel descents - I would be spun out.
Originally Posted by phlegm
I'd save 134g for the front derailleur, 99g for a shifter, cable and housing (whatever that is for a FD run?), and the swap to a Widgit would only net me a loss of 20g from the current triple rings I have on the bike. So 253g + cable/housing weight, a bit shorter chain, and most likely a bit (10g) by going to a short cage derailleur.
My guess for my bike would be a weight loss of .64 pounds (293g or so). Another 49g if I went with the 9 speed 11-32 SRAM weight weenie cassette which would be 3/4's of a pound total weight loss (342g).
With 1X, you'll also like the simplicity. Just one shifter to futz with.
2007 ellsworth truth
Frame: 2007 Ellsworth Truth
Fork: 2009 Fox F120
Handle Bar: 2008 FSA carbon
Stem: 90mm KCNC scandium (not in pic)
Grips: Peaty Grips (going Esi soon)
Shifter: XO 9speed
Saddle: selle italia SL
Seat post: KCNC scandium
Chain: KMC x9
Brakes: Hygia Elite (going R1 soon)
Crank: Truvativ noir w/ E13 34T chainring
Pedals: Exustar PM25
Chainguide: MRP 1x
Wheelset: ZTR Crest/dtswiss revo/Hope pro2
Tires: Rocket Ron 2.1
Weight: 23.36lb or 10.6kg
I have a somewhat similar bike to yours I suppose. I have a Pivot Mach 5.7c that is
24lbs 5oz (24.31lbs) as I ride it every day (no light weight parts only for weighing, nothing missing except my garmin, includes garmin mount, crank boots, frame protection, pedals, air in tires etc. so I could easily get it below 24lbs if I wanted to show it off as a light bike.
This is what groupset I am running.
Sram Quarq mtb crank (26-39) I wanted a power meter for training and because I think its fun, the race face crank is lighter but this is the lightest option I think to get a power meter
XTR Shadow Plus rear derailleur (if you are looking at a non-clutch type derailleur you are insane, the weight penalty is totally worth it)
XTR FDM986D6A Front Derailleur
XX Cassette 11-36
Stock XTR cables and housing
KMC x10sl chain because that's what was in stock at the time.
Race Face crank boots, super duper 100% necessary for me, while they keep the cranks from getting messed up if they hit the ground it basically gives me a ton of piece of mind knowing they are there
Rest of bike:
2013 Pivot Mach 5.7c Large with stock Fox CTD shock
2011 Fox 32 Talas Fit 150mm 15qr tapered kashima
Light bicycle wider carbon rims
Sapim CX ray spokes (straight pull front j-bend rear) and Sapim polyax nipples
Extralite 15qr hyperfont hub
DT 240s centerlock 12mm rear with 36pt upgrade
Schwable tubes because I'm lazy
Roval tubeless rim Tape
Continental Race King 2.2 Race Sport tires
R1 Brakes with R1 rotor front XX rotor rear
KCNC QR seatpost collar
Thomson elite straight seatpost
Selle Italia Kit Carbonio Flow
Thomson elite 100mm stem
Extralite grips and bar plugs
Easton Haven Carbon bars
Some spacers I got from the bike co.
Stock fox 15 qr skewer
DT through axle that came with the frame
As you can see its not even a light build and its still under 25lbs. Lots of parts could be lighter but this bike is what I wanted and I saved a bunch of money on some stuff. I also don't have any light weight bolts.
A lot of the people with bikes that are like 7lbs lighter are just extreme ww, probably not the ideal bike to ride in the real world.
Last edited by litany; 04-24-2013 at 07:01 PM.
Nice bike! I run the Race Face crank boots too - forgot to mention. Agreed, they offer peace of mind.
One of the last Ti Niotas made. Adjustable 4"/5" travel runnig 650b/26 at the moment. About 24.2 lbs. Niota650side.jpg
Here is my contribution. Hope it helps.
Frame : Specialized Epic M5 2007 Marathon
Fork : Rock shox Sid Race 2009 - Mo Co Removed
Headset : Union
Topcap : Woodman Carbon
Spacer : Soul Kozak
Stem : Syntace F109 100mm 6Ί
Handlebar : New Ultimate Aluminum Flat Bar Scadium 580mmx31,8mm
Grips : Extralite Ultragrip
Seat Clamp : FRM SC35 Ti. 34,9mm
Seatpost : SCHMOLKE SL 30,9x430
Saddle : Selle Italia SLR Kit carbonio Flow
Quick Releases : Controltech Race
Hubs : Progress Turbine Ultra
Spokes : Sapim Lazer
Rims : No Tubes ZTR Podium MMX
Tubelesskit : No Tubes
Front Tire : Schwalbe Rocket Ron 2.1 EVO
Rear Tire : Kenda SB8 1.95
BB : Shimano XT
Cranks : Shimano XTR M960, cut for 2 plates with Ti screws
Chainrings : TA Specialites Chinook 24-38
Pedals : CB Egg Beaters SL+Ti axel (ward Ind)
Cassette : Shimano XT 11-32
Chain : KMC X10SL 2013
Shifters : Shimano XT without Display
FD : Shimano Durace 7900 34.9 with ergal screw
RD : Shimano XTR M971 GS + Tiso Jockey wheels
Shift Cables : Alligator i-link
Front Brake : Hope Race X2 + Matchmaker
Rear Brake : Hope Race X2 + Matchmaker + KCNC PM-IS
Front Disc : Hope Race 160mm
Rear Disc : Hope Race 140mm
Total weight = 9530gr or 21.01 Lb
Last edited by XMAN; 04-27-2013 at 02:29 PM.
Reason: wrong info.
Very nice. I've heard good things about the Schmolke seat posts. Looks very long (is it really 430mm)?
Do you know the weight?
My current setup:
Brake: (Front): Formula R1 (black polished, carbon lever, carbon clamp) - 160.4g
Brake: (Rear): Formula R1 (black polished, carbon lever, carbon clamp) 167.8g
-Rotor: (Front): - Innolite Design 160mm 46.8g
-Rotor: (Rear): - Innolite Design 140mm - 38g
-Rotor bolts: - 10xTi + 2xalu 11.6g
-Rear Adapter: (KCNC 140mm) + 2xalu m6x14 12.9g
Caliper bolts: - 2xTi + 2xalu m6x16 10.3g
Cables: - Shimano Di2 tuned(modified internal battery) - 82.8g
Cassette: - 11-28 Shimano Dura Ace(Nino Ti tuned) - 163g
Chain: - KMC X10 SL Gold (105 links) 235.4g
Crankset: - THM Clavicula MTB 2x10 (FRM Pro 40t, R2-bike 26t 521.4g
Derlr. (Front): - Shimano Di2(alu. bolts; Smud clamp) - 123.8g
Derlr. (Rear): - Shimano Di2(alu. pivot bolt) - 213.9g
Fork: - DT Swiss XRC 100 TwinShot(carbon cap) - 1146.6g
Frame: MSC Koncept Carbon M (DT Swiss XR damper, KCNC Radiant R1 headset bearings*, Ti/Alu. bolts, derr. Hanger, bikeshield protective foil) 1567.9g
Grips: Extralite Ultragrips (Cut) 13.2g
Handlebar: - AX-Lightness Poseidon UD 25.4x580mm (Bar-end use) 81.9g
Pedals: - Crank Brothers Egg Beaters 4Ti (Ti springs, alu. nuts, plastic sleeves) 146.9g
Seat: - 0g
Seatpost: - Berk Seat/Seatpost combo(31.6x350mm) - 137.8g
Seatpost Clamp: - Smud Carbon SL 4.8g
Shifters: - Shimano/Cateye tuned - 19.8g
Skewers: - Tune DC 16/17 35.4g
Stem: - Syntace F99 75mm (Ti bolts) 83.7g
Headset: KCNC Radiant R1 (Tune BuBu Cap) 8.2g*
Top-cap: - Soul Kozak Light-bike edition (Cut,hollow) 3.7g
Expander: Extralite Ultrastar (polished) 8.7g
Tire (Front): - Tufo XC2 Plus - 462.6g
Tire (Rear): - Tufo XC2 Plus - 468.4g
Tubes: Glue ~~ 30g
-Hub: - Extralite HyperFront 28h 9mm - 79.4g
-Rim: - Ax Lightness SRT CC 28h 229.2g
-Spokes: - Sapim Superspoke - 103.2g
-Nipples: Sapim alu. 9.8g
-Rim Tape: - 0g
-Hub: - Extralite HyperRear 28h - 167.7g
-Rim: - Ax Lightness SRT CC 28g - 229.4g
-Spokes: - Sapim Superspoke - 106.8g
-Nipples: - Dt - 9.8g
-Rim Tape: - 0g
-(Misc.) Bar plugs, zip-ties, spacer, carbon paste 10g
Total: 6952.3g or about 15.4 lb.
Your seat seems very light at 0 grams.
Seat is one piece integrated with the seatpost at 138g.
2011 Rocky Mountain Element 70 MSL (Large) 22.8 pounds / 10.36kg
Fox F120 Float tapered steer tube front fork
FSA Ceramic bearing ZS42 top headset/ std 1.5" bearing ZS52 lower headset
ENVE 30.9mm x 400mm setback seatpost
ENVE 100mm stem
ENVE 700mm flat bar
Shimano Pro XCR grips
Selle Italia SLR XC saddle
Race Face Next carbon cranks (22/32/44)
XTR 3x9 shifters
XTR 11-34 cassette
XTR RD-M971 rear derailleur
XTR FD-M970 E type direct mount FD
Shimano BB-92 press fit BB
XTR M975 disc brakes
Magura Storm SL 160mm rotors + DT Swiss CL adapters
ENVE 26" XC clincher wheels with DT 240S CL 15mm front/ RWS thru axle rear
Continental Race King 2.2 Supersonic tires
Continental Lite tubes
Sorry, should have read the line immediately below the seat. That's extremely light for both.
Originally Posted by krzysiekmz
The SCHMOLKE is 430mm, is a costume size and weight 142,1gr.
The one I had before was a Thomson Masterpice with 350mm and it broke my old Epic frame in the clamp area because it was to short.
Do you think you could post a picture?
Originally Posted by krzysiekmz
I just happen to have a photo of krzysiekmz's bike. Looks a bit heavier than 15.4 lbs though:
Originally Posted by FuelEX8guy
Not the latest but that is what it was last year: changed wheels/tires/rotors since then.
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