Yeti ASR-Carbon *** Update - now 18.01 lbs ***

[Jaker]

My new build. Came in at 19.3lbs (8.76kg) on my relatively accurate (within 10-20g) hanging digital scale. I expect to have it below 18.5lbs (8.4kg) pretty soon. It could then be below 18lbs (8.1kg) with the Maxxis Maxxlite 310 tires I have on my commuter bike.

I have a set of Claviculas that I want to use on the bike, but the BB shell is made for Shimano specific pressed in bearings, and has an inside diameter of 41mm, not 42mm like BB30. The Claviculas have a spindle diameter of 30mm, and I cannot find (so far) bearings that have 30mm ID and 41mm OD, with a flange since the BB shell has no grove for a C ring to stop the bearings from going too far into the frame.

The seat clamp assembly slides over the seat mast (ISP) and is made of carbon and aluminum, but weighs 200g. I will tune it to use Thomson, AX Lightness or KCNC clamping parts, and expect to get the weight there down to 125g. Maybe I'll send one to Samu, and get him to make me a custom seat. He should be able to do the whole assembly at 160-180g.

I might also try a DTSwiss XR Carbon rear shock.

I think I covered it all:

2008(?) ASR-Carbon Medium frame w/RP23 shock 2160g (4 1/4 lbs? More like 4 3/4 lbs)
Shimano crank bearings/bearing holders/plastic spacers/plastic center cover (included in frame above)
2007 Lefty Speed Carbon SL shock 1250g
Custom made CF/Al 1 1/8 to Lefty steerer adapter 125g
XTR M975 disc brake levers and calipers (tuned)
Scrub Components 160mm front rotor (56g)
Hope Mono Mini Pro 140mm rear rotor (58g)
Syntace F99 Ti bolt 120mm stem
Schmolke SL 560mm flat bar (97g)
KCNC BE1 bar ends (48g)
ESI race silicone grips
Sram twist X0 shifters w/al. clamp bolts
Alligator I link shifter housings
PowerCordz shifter cables
Crank Brothers Cobalt SL headset (65g)
Tune Gum Gum headset starnut with carbon cap and al bolt
5mm plastic steerer spacer
XTR M970 175mm crank arms (335g)
Extralite Octaramp 44 and 30t chainrings (2x9) (86g)
Aluminum chainring bolts/spacers, etc...
EggBeaters 2Ti with Ti short axles (173g)
Campagnolo Record Ti Compact braze on FD
Parlee 34.9 carbon FD adapter/clamp
KMC X10SL Gold chain 106 links (228g)
'08 Sram X0 medium cage RD with carbon pulleys and carbon inner cage plate (173g)
Nino Ti 11-34 SL cassette (178g)
Tune SpeedNeedle Alcantra seat (85g)
Tuned (mildly) Yeti ASR-C seat clamp assembly (195g - ouch! I`m gonna fix this one)
No Tubes ZTR Race 7000 Lefty front wheel including Lefty axle bolt and extraction cap (570g)
DT190 rear hub/DT tuned centerlock to IS disc adapter/DT Revolution 2.0-1.7-2.0 spokes/al nipples/ZTR Olympic rear rim 32hole (722g)
Yellow tape and Olympic valve stems in both front and rear wheels
Tune Skyline rear MTB bolt on skewer (13g)
Continental SpeedKing Supersonic 2.3 front tire (456g)
Continental RaceKing World Cup 2.2 rear tire (480g)
No Tubes sealant in both tires (3-4 ounces)

[RTW]

Lovely, simply lovely. This, or the Mojo for me are the best looking full suspension frames available at the moment.

[biky]

looks nice but can you make some pics on a basic background

can´t almost see the bike

[cerro]

Really impressive. Much great solutions.

How thick spacer do you use between the chainrings?

[Jaker]

How thick spacer do you use between the chainrings?

3.25mm, plus the Octaramp 30t has a built in spacer. I don't know for sure what the total thickness is. I am still experimenting. I first had 2.75mm plus the 30t, but that was not enough. I'll find out tomorrow if the new thickness is correct.

[Phill P]

do you have a link to the Alligator shifter housings? I'd like some dark blue housing, Nokon only do baby blue.

Don't see many non Cannondale bike with a lefty. Really cool fork.

[aki]

Excellent bike!!! Hopefully you'll get your Claviculas mounted.

[beatnik]

You must put a 1.5 kilos weight in the right side of your handlebar to handle the bike correctly, but it´s a nice bike

[Jaker]

Here's an update. It's down to 18.6 lbs now. Look for the changes in bold italics:

2008(?) ASR-Carbon Medium frame w/DT/Swiss XR Carbon shock 2160g (4 1/4 lbs? More like 4 3/4 lbs)
Shimano crank bearings/bearing holders/plastic spacers/plastic center cover (included in frame above)
2009 Lefty Speed Carbon SL OPI Solo Air shock with minor tuning (Ti clamp bolts and trimmed frame bumper) 1167g
Custom made CF/Al 1 1/8 to Lefty steerer adapter 125g
Formula R1 brakes with Formula carbon levers and heavy Kool Stop steel backed organic pads
Scrub Components 160mm front rotor (56g)
Scrub Components 140mm rear rotor (58g)
Syntace F99 Ti bolt 120mm stem
Schmolke SL 560mm flat bar (97g)
Heiner K custom carbon bar ends(37g)
ESI race silicone grips
Sram twist X0 shifters w/al. clamp bolts
Alligator I link shifter housings
PowerCordz shifter cables
Crank Brothers Cobalt SL headset (65g)
Tune Gum Gum headset starnut with carbon cap and al bolt
5mm plastic steerer spacer
Race Face Next Carbon cranks
Mattias custom 42/28 front Ti chainrings (soon to be 40/270
Aluminum chainring bolts/spacers, etc...
EggBeaters 2Ti with Ti short axles (173g)
Campagnolo Record Ti Compact braze on FD
Parlee 34.9 carbon FD adapter/clamp
KMC X10SL Gold chain 106 links (228g)
'08 Sram X0 medium cage RD with carbon pulleys and carbon inner cage plate (173g)
Nino Ti 11-34 SL cassette (178g)
Tune SpeedNeedle Alcantra seat (85g)
Tuned (mildly) Yeti ASR-C seat clamp assembly (195g - ouch! I`m gonna fix this one)
No Tubes ZTR Race 7000 Lefty front wheel including Lefty aluminum OEM Cannondale axle bolt and extraction cap (570g)
DT190 rear hub/DT tuned centerlock to IS disc adapter/DT Revolution 2.0-1.7-2.0 spokes/al nipples/ZTR Olympic rear rim 32hole (722g)
Yellow tape and Olympic valve stems in both front and rear wheels
Tune Skyline rear MTB bolt on skewer (13g)
Continental RaceKing 2.2 front and rear tire (480/478g)

I kept the bike dirty for the pictures, just so no one would accuse me of having a "boutique" bike. I ride this thing. I actually fractured the CF of the left rear seatstay a month ago. I'm not sure how it happened, but Yeti replaced it under warranty. I now have 2 spare seatclamp assemblies so I'll be making my custom lightweight seatclamp soon. I hope to get it down from 195 to about 110g. I will also be contacting KoolStop once again to push for the alloy backed R1 organic brake pads.

I should throw the pair of Maxxlite 285s I just got onto the bike for the true Weight Weenie weigh in. It would drop the bike down to 17.75 lbs :thumbsup: .

[Geoff]

That is awesome. I want to build a non-Cannondale Lefty, too. I'm thinking of a Di2-version...

[Frankie - B]

Wow, that is a nice bike! keep up the good work and the tuning!

[Cheers!]

Sweet bike. Was 2008 the last year Yeti offered the all black color scheme? How does the bike handle in the rougher / more technical British Colombia terrain?

[Jackalmiauleon]

.

[Jaker]

I love the handling. I can't say that the riding I do here is any different than the riding I did back east. About the only difference is the longer climbs and the repeated log crossings that I come across. The bike really suits my riding style. It'll cruise along with me when I'm wanting to take it easy, and when I turn up the heat, it'll keep up with me just fine. I rode an Anthem Advanced before this, and it was always a little twitchy because of the steep headtube, but at the time that suited me just fine.

The Yeti site still shows carbon black as one of the colour options, and if you scroll the pictures, it'll come up.

Thanks for all the props guys.

Jacques

[karl711]

Very nice bike.
I like to keep an eye on what you are doing with your Yeti as you seem to be a couple of steps in front of me with my bike (see photo).
How have you found the D T rear shock, is it as good as the stock RP 23?
Hope you can find a way to fit the Claviculas cos that is 1 upgrade i will defiantly be putting on mine if poss,had a set on some of my road bikes & was super impressed with them, expensive but worth it.