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PostPosted: Mon Feb 20, 2012 3:12 am 
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Location: Surrey B.C. Canada
I had a 13lbs single speed rigid that I was doing 2-3 foot drops on a regular basis with never an issue and I am 85kg's. It has to do more with riding style than weight. I haven't even had to true the wheels. Add some gears to that and you are up to 14.5 lbs and really would do the same thing on that as well.

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PostPosted: Mon Feb 20, 2012 2:14 pm 
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Location: Norway, Oslo
I also think it's very much achievable, but of course there will be some compromises. Especially since it's not a sub 1kg frame. I can't be running e.g 700 gm tires and XTR pedals.

I feel bad about yesterday, so today it's one part that's (hopefully) more fun!

Brakes

Last year I used Shimano XTR and loved them. They felt really great, with good modulation and lever feel. The power was nothing to complain about, even with New Ultimate rotors. I've used Sram/Avid in the past and hated them, so that was not an option (even though it would match other pieces on my bike, hint hint). This year I decided to try something new! Formula r1 racings! They look really great in shiny, although I would have preferred all black - Batman style. The weights are as following:

Front (100cm hose)
Lever + hose + caliper: 160g
Organic pads (comes stock) with alu backplate: 10g
Bolts (6x rotor + 2x caliper + 2x washer): 15g
Sum: 185

Rear (165 cm hose)
Lever + hose + caliper: 174g
Organic pads: 10g
Bolts (same as above): 15g
Sum: 199

I need to cut around 35 cm on the rear and 25 cm of the front, shaving around 15 g or so. So the brakes in total will be 369g with bolts, without rotors. I currently have 2x KCNC 160mm @ 74g rotors, but I'm looking for some Innolites or Scrub workhorse. Which performs better?

Image
Formula r1r by Martin.F., on Flickr

Image
Formula r1r by Martin.F., on Flickr

Image
Formula r1r by Martin.F., on Flickr

Image
Formula r1r front by Martin.F., on Flickr

Image
Formula r1r rear by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

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My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR


Last edited by Martin.F on Mon Feb 20, 2012 7:21 pm, edited 1 time in total.

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Posted: Mon Feb 20, 2012 2:14 pm 


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PostPosted: Mon Feb 20, 2012 2:22 pm 
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Location: Canada
nice brakes

I bet the XX item is the cassette, huh


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PostPosted: Mon Feb 20, 2012 7:25 pm 
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Location: Norway, Oslo
One vote for XX being the cassette then. Guess I'll have to save that one for later to keep the guessing alive! :mrgreen: :thumbup:

If anybody want to see close-ups of parts in a specific angle, just shout it out and I'll see what I can do :) The same applies for weight of individual parts. My scale is only 2000g/1g though...

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PostPosted: Wed Feb 22, 2012 4:42 pm 
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Location: Norway, Oslo
New part

Shifters

This is 1 of the 2 parts on my bike I'm not 100% sure about if I'm going to use or not. However, they were so cheap and so light, and I loved gripshift in the past, so I thought I'd might as well give it a shot. I'd might do some dremeling on the clamps to save a gram or two, along with some dremeling on the derailleurs. It really depends on the frame. Not worth dremeling a total of 15 grams if the frame is an anchor IMO. The shifters are of course tuned with alu bolts :smartass: :thumbup:

Image
SEC gripshift 3x10 by Martin.F., on Flickr

Image
SEC gripshift 3x10 by Martin.F., on Flickr

Image
SEC gripshift 3x10 by Martin.F., on Flickr




Regarding the brakerotors: does anybody have Innolites or Scrubs to sell me so I can test them? If I get the time tomorrow, I'll do seating zone. As a teaser I can tell you that it's a quite popular saddle, but not many people use it this way.

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My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR


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PostPosted: Wed Feb 22, 2012 4:49 pm 
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Hey what about a more neutral, less ridiculously out of place backdrop for you pics?

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PostPosted: Wed Feb 22, 2012 6:35 pm 
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Location: Norway, Oslo
Most people seem to like it, and I'm sorry to say that you have to endure some more pictures with the cyclepassion-calendar as a background. But since you ask so nicely, here you go :mrgreen: :

Wheels

I've asked quite a few builders what's good and not, and read a lot online. I wanted the race rims, I wanted the lightest FRM rims, and I wanted the gold rims. However, most builders seem to agree on that these are too soft to be actually usable, so I went looking for something else. I've always loved Stans rims, and have ridden them for the past years, alongside some Crossmax slrs, Shimano and Fulcrum. I really like the low profile beadhooks and the wide rim, and of course the weight. I had a long discussion with (amongst others) Michael Bogen from r2-bike, and these are the wheels I chose.

Last year I ran the podium MMX/3.30ti wheelset and was happy with that, but in the roughest fastest part I wanted more precision and stiffness of the wheel. I push a 1350w 5-sec, 720w 1-min, 410w 5min and a 330w FTP, and being quite bold on the descents I felt I needed the stiffness of the Crest. If I were to choose from everything in the world, I would have used a carbon rim. But I'm a student, so money is not unlimited (although a high budget on this build).

In order to reach my goal, the hubs needed to be light. So that left Tune prince/princess skyline and Extralite hyperfront/rear. I went with the Extralites because of the lighter weight + 500m down the road from where I live I have an importer of Extralite and spare parts.

For spokes there was either the Sapim superspokes or CX-rays. On advice from r2-bike and well renowned wheelbuilders, the superspokes would be too flexy and stretch too much to build a solid wheel, so CX-rays it is then.

After I saw Culturesponges air9 build I saw his wheels in all-black and LOVED it, so I decided to do the same. I removed the decals and saved 4 grams. The wheels will be set up with Stans yellow tape and valves and run tubeless with sealant.

Total weight:
Front wheel 621g
Rear wheel 713g
Wheelset = 1334 g

Image
Wheelset by Martin.F., on Flickr

Image
Extralite hyperfront disc by Martin.F., on Flickr

Image
Extralite hyperfront disc hub by Martin.F., on Flickr

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Extralite hyperreardisc hub by Martin.F., on Flickr

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Extralite hyperrear disc hub by Martin.F., on Flickr

Image
Wheelset by Martin.F., on Flickr

Image
Front wheel by Martin.F., on Flickr

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My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR


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PostPosted: Wed Feb 22, 2012 6:48 pm 
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Seems like you're making smart, informed choices. Those wheels look good. When this bike is finished and raced hard let us know how things hold up.


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PostPosted: Wed Feb 22, 2012 7:05 pm 
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Location: Surrey B.C. Canada
I do not like the wheelset as shown without the calendar behind them. They just do not look as interesting as the other parts.

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AERO & LIGHT is RIGHT

Cervelo SLC 5890g/12.98 lbs


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PostPosted: Wed Feb 22, 2012 10:30 pm 
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Location: Norway, Oslo
@ bmanX, haha! I guess I'll have to do two shots of everything then. One with distraction background, and one without :mrgreen:

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My Bianchi Oltre XR


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PostPosted: Wed Feb 22, 2012 10:39 pm 
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Appeal to the masses and ignore the minority. It was worked for so many governments. :thumbup:

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AERO & LIGHT is RIGHT

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PostPosted: Wed Feb 22, 2012 11:02 pm 
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Excuse my ignorance, but what shifters are those? I see they are 10spd compatible. Any way to make the left shifter work with double chainring? They are light...


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PostPosted: Thu Feb 23, 2012 2:20 pm 
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Location: Norway, Oslo
It is SEC gripshifts. They are very similar to the old Sachs quartz. They make a Shimano compatible one and a Sram compatible.

Info here

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My Bianchi Oltre XR


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PostPosted: Fri Feb 24, 2012 7:36 pm 
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Location: Norway, Oslo
More pictures! Oh happy days. I missed yesterday, so more pictures than usual today :mrgreen: Tomorrow I'll do derailleurs :)

Saddle

This was for me a no-brainer. I've been on this saddle since 2007, and my ass still loves it, so I see no reason to change it. People can say oh you should change to that saddle because it is comfier or change to that saddle because it's lighter with the same comfort. I like this saddle, so this is staying :thumbup:

Tune speedneedle: This was the leather version. It came in at 90g standard, but I've removed the leather as it got ugly a while back, and been riding it leatherless since. Weight now is 72 grams

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr



Next, I need something to mount the saddle on. I know I'm short, but not so short that I can ride post-less. This one is a sexy one!

Seatpost

I was lucky enough to buy a Schmolke seatpost from user elfuinha, and it looks brand new and un-used. It is a 31.6x375mm, and it's the SL version. The yokes were quite heavy, so I bought some KCNC ones instead, dropping 4 grams. However, the threads on the Schmolke yokes and the KCNC yokes are different, so I guess I'll have to drill up some new threads or just accept the 4 gram penalty. Weight is 122 w/Schmolke yokes, and 118 w/KCNC

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr



Next up I need something to keep the post in place

Seatpostclamp

I wanted something light, but I don't trust the 5gram carbon ones. So I got one that was twice as heavy and with a 6.5Nm max limit. It looks plain and simple, and it performs well. It's made by Procraft, and I got it cheap at R2-bike.de Weight: 10 grams

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr



I've shown you the front end, except for what I use to turn the bars around. I also need a headset.

Headset

I call it the Frankenset! At first I ordered a Fun-works one along with the gripshifters from actionsports.de. When the frame came, it came with an FSA headset, and at the LBS they had a Canecreek carbon top-cap. Pictures are with the Funworks cap, but the Canecreek dropped 2 grams. I used the Fun-works crown race and lower bearing, FSA upper and Canecreek dust cap. Total of 69 grams.

Image
Untitled by Martin.F., on Flickr



Now for a part that I'm veeeery curious about. It feels so light it can't be true, but most people say that they perform well. I can't wait to test it out!

Cables and housing

I decided to try Powercordz for this build. I've read reviews about how great they are and how durable they are, so I pre-ordered a prime set for derailleurs. One set was enough for my bike, and I even had 29 gram left after cutting it. It came with a 202 cm housing. Total weight for my bike: 31 grams :unbelievable:

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

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My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR


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Posted: Fri Feb 24, 2012 7:36 pm 


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PostPosted: Fri Feb 24, 2012 10:13 pm 
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Location: Norway, Oslo
What the hell, let's do more!

Front derailleur

MTB derailleurs are quite heavy compared to road ones, so for my build I went with a Dura Ace 7900 derailleur with a Carbon-ti x-pull converter and alu bolts. The derailleur was 78 grams stock, the x-pull was 4 grams. I changed the clampbolt + wire bolt to alu, and kept the titanium bolt to attach the x-pull to the derailleur. Total weight: 79 grams

Image
Untitled by Martin.F., on Flickr



Rear derailleur

I've always used Shimano derailleurs, except for 4 months when I tried x.0 (when it was the top of the line). Shimano XTR are great products, no doubt about that, but this time I wanted something sexier. So I went with the Sram XX. Only thing is that it is too heavy. Easy fix --> carbon pulleys. Weight stock: 180g with 23g pulleys. Changed them to 9g Roth Shek pulleys. End weight: 166g

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

Image
Untitled by Martin.F., on Flickr

_________________
My 7.3kg/6.4 kg 29'er project buildthread!
My Bianchi Oltre XR


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