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PostPosted: Sat Jan 25, 2014 7:18 pm 
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Location: Bergen, Norway
Frame issue. Try a thin spacer between caliper and adapter, usually works fine.

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PostPosted: Sun Jan 26, 2014 9:34 pm 
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updated some of the weights on page 1


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Posted: Sun Jan 26, 2014 9:34 pm 


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PostPosted: Mon Jan 27, 2014 1:01 am 
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given I have a hardtime finding a super low stack headset cover, I thought I'd try a homemade solution.

I know some people run their stem right on the headset top bearing. I had a headset rubber seal lying around so I tried something interesting, using the rubber seal, some thin steer tube spacers and some cannondale BB30 plastic shims. The shims are not the same diameter then the steer tube, a bit larger, once centered and the stem tightened down, I think it should work out nicely.

Here is how it looks

From top to bottom: 1 plastic shim, rubber seal, 1 plastic shim, 3 metal spacers
Image

stack height looks good
Image

Image

Image


Interested to see how it goes. My only concern would be the plastic shims need to be compressed enough not to develop any play in the steer tube/headtube area.


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PostPosted: Mon Jan 27, 2014 1:18 am 
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Check out FSA Micro Headset spacers. They are metal and designed to go under top caps that rub on frames - should work better than plastic ones for you.


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PostPosted: Mon Jan 27, 2014 1:37 am 
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check out the first pictures, the 2 bottoms parts are actually 3x thin metal spacer, like the FSA ones, the plastic shims actually serve as improving the seal capacity of the rubber seal.


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PostPosted: Mon Jan 27, 2014 3:58 am 
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oops, I somehow missed the part where you said metal spacers and thought they were all plastic.


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PostPosted: Sat Feb 01, 2014 12:20 am 
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here are some of the parts remaining, on scale

shimano XTR i-spec shifters
Image

Shimano XTR shadow+ rear derailleur
Image

Shimano XTR cassette, 11-36
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PostPosted: Sun Feb 02, 2014 2:44 pm 
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here is the final weight and some quick pictures

so close to be sub 10kg :D

XPREZO T-29 2014 final weight: 10,04 kg

Image

Image

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PostPosted: Sun Feb 02, 2014 2:56 pm 
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Looks great! :D

Understated yet racey and I'd imagine looks even better in the flesh.

Would you normally prefer to have more saddle to bar drop? Along with the cost of investing in new wheels/ tyres/ etc, the bar height is something I'm not sure I could live with on a 29er. How do you find it (assuming no change in position to your RM)?

Let's have a full spec list and get rid of those pesky 40g's! :D


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PostPosted: Sun Feb 02, 2014 3:03 pm 
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Hey Dan!

yes I will be switching the stem for a 90mm one, this one is 100mm. I need to shorten it because the top tube is 13mm longer then my RM. The stem will also be -25d. My option is the Ritchey c260 -25d. This should bring the head tube about the same thing as my RM which used the -17d stem.

The bike is pretty light for what it is. There is no real WW parts on there. Going single ring I could save over 500g but not sure it is worth it, as it is a race bike and I want my race datas.

Frame: Xprezo T-29 Columbus Zona medium: 2001g (incl. press fit GXP bb, lower headset cup, cable guide, front derailleur mount and bolt).
Fork: rockshox SID RLT 29er: 1648g uncut (incl. 15mm axle)
Headset: FSA: 69g
seatpost clamp: 30mm straight line clamp with Ti bolt: 18g
Seatpost: ENVE setback 27,2x400: 192g
Saddle: full carbon: 102g
Stem: KCNC arrow 100mm -17d: 133g
Bar: ENVE sweept 740mm: 172g
bottle cages and hardware: generic carbon and alu bolts: 33g
Outer Cables: shimano: 49g
Brakes: Shimano XTR 987: 384g
Front derailleur: Shimano XT: 135g
Rear derailleur: Shimano XTR shadow plus: 213g
Crankset: SRAM GXP SRM 175mm 26/39 chainrings: 699g
Bottom Bracket: included in frame weight
rear axle: rockshox maxle 142x12: 73g
Chain: shimano SLX: 261g
Shifters: Shimano XTR: 223g (incl. cables)
housing: shimano XTR: 49g
Cassette: Shimano XTR 11-36: 270g
Wheels: stans crest 29, american classic hubs, sapim lazer spokes: 1649g (incl. KCNC razor rotors 160mm, Ti rotor bolts, tubeless valves, speed magnet and rim tape)
Tires: Maxxis Ikons 2.2, exc exo: 1189g
Pedals:egg beater 3: 279g
Computer: SRM PC7: 82g (incl. handlebar mount)
Misc: (bartape grips, speed sensor, chianstay protector): 37g


Last edited by devinci on Mon Feb 03, 2014 2:27 am, edited 1 time in total.

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PostPosted: Sun Feb 02, 2014 5:38 pm 
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Looks great! Nice race build. That SRM is killing it for weight though (and a Shimano/SRAM mix :( )... if you want the data I guess you need it though.

Regardless, very cool, very reliable. it's nice to see others racing on steel.

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PostPosted: Sun Feb 02, 2014 9:12 pm 
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Some ideas for those 40g's (I know you might have considered or discounted some already)

Seatclamp > Mt Zoom -12g (works much better than it looks it should!)
Fork Bolt Thru > Tune or Extralite -Unsure (what is the weight of the original is, Tune is 41g)
Stem > Something 110g -23g
Bottle cage > SMUD carbon -23g (again, works much better than it looks it should!)
Jockey wheels > Aerozine Ceramic -20g (cheap on ebay)
Chain > KMC X10 SL -20g (again, available cheap on ebay)
Pedal axles > Ti -50g (cheap on ebay)
Chainstay protector (assuming neoprene and ~12g) > Small section of adhesive neoprene -10g

All cheap, functional and not replacing anything you have heavily invested in such as seatpost, bars or wheels for example


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PostPosted: Sun Feb 02, 2014 9:16 pm 
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Do you like this saddle? It's good for ride some kms?


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PostPosted: Sun Feb 02, 2014 11:06 pm 
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Location: Canada
DanW

Thanks for those suggestions. Current chainstay protector weights 7g (road bratape). I may check some of these but before I really need to fix 2 fit issues

1- a low stack headset cover. The slam that stem ones seem unfindable at the moment, to ship to Canada.

2- a 90mm -25d stem, most likely ritchey c260 stem. If you guys have any other stem suggestions, go ahead.

moshinho

actually pretty comfortable! I did many long rides on this saddle including a 7h ride, a lot of XCO races and a few XCM races too.


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PostPosted: Mon Feb 03, 2014 1:26 am 
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Posts: 1064
I think I saw it mentioned elsewhere, but have you thought about a Veloflyte headset cover?
Image


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Posted: Mon Feb 03, 2014 1:26 am 


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