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Weight: Please make a guess,i want to see what people think.
19 lbs 13%  13%  [ 1 ]
19.5 lbs 13%  13%  [ 1 ]
20 lbs 13%  13%  [ 1 ]
20.5 lbs 25%  25%  [ 2 ]
21 lbs 13%  13%  [ 1 ]
21.5 lbs 0%  0%  [ 0 ]
22 lbs 13%  13%  [ 1 ]
22.5 lbs 13%  13%  [ 1 ]
Total votes : 8
Author Message
 Post subject: Krapf (Columbus SL)
PostPosted: Sat Sep 09, 2017 1:59 pm 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
Hello. This is my roadbike that i had from 2011.
It is not in final state, i want to change the rear wheel(something lighter 900gr~) Front tire:Conti gp 4000S II Skinwal 23c and the chain: Kmc 9sp SL.
So this will save me 360gr~
I have many many thousands of km's with it,her and love it.
http://imageupper.com/g/?S110001001B1504958074564898
Image

Fork: Columbus SL

Headset: Shimano HP-6400,
Stem: 3TTT 110mm
Handlebar: 3TTT Competizione
Bar Tape: Synthetic cork

Brake Levers/Brifters: Shimano BL-6207
Brake Calipers: Shimano BR-7200
Brake Pads: Generic stuff?
Brake Cables: Jagwire Keb-Sl

Shifters: Shimano SL-6400
Front Derailleur: Shimano FD-7210
Rear Derailleur: Shimano RD-6401
Derailleur Cables: Generic stuff?
Cassette: Shimano CS-HG50-8 11-28T
Chain: KMC x8.93
Cranks: Truvativ Rouleur
Chainrings: truvativ+ Custom 38 ring
Bottom Bracket: FSA Platinum Pro Titanium Mega Quad
Pedals: XLC MTB/ATB-Pedal PD-M15

Rims: ALX 440SL, Mavic Module 3 CD
Hubs: ALX, Shimano FH-6402
Hub Skewers: Titanium from China
Nipples: generic?
Spokes: generic?
Tyres: Michelin dynamic classic 23C,Continental grand prix classic 25C
Tubes: Latex all the way.

Saddle: Smp composit
Seatpost: Aluminium generic.
Seatpost Binder: Bolt?

Bottle Cage: Al+plastic
Extras: None,not now not in the future.

Weight: Please make a guess,i want to see what people think.
http://imageupper.com/g/?S110001001B1504958074564898


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 Post subject: Re:
PostPosted: Sat Sep 09, 2017 3:16 pm 
Old School Hero

Joined: Sat Oct 10, 2009 12:31 pm
Posts: 240
It's a brilliant name!


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 Post subject: Re: Re:
PostPosted: Sat Sep 09, 2017 3:23 pm 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
rogerzilla wrote:
It's a brilliant name!

The Bike name? You can google Krapf bicycle,in the image section there are a few.I think it is a Swiss brand.


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 Post subject: Re: Krapf (Columbus SL)
PostPosted: Mon Sep 11, 2017 9:00 am 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
So, it is 19.7/ 8.95kg in the picture and i want it down at 8.60.Still can go lower if you have money,but i want it retro and usable.


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 Post subject: Re: Krapf (Columbus SL)
PostPosted: Mon Sep 11, 2017 10:05 am 
Dirt Disciple

Joined: Sun Nov 16, 2014 7:01 pm
Posts: 42
That's a good weight for a vintage bike. Are the quick release skewers modern external cam type? If so it may be worth reading the info on the Sheldon Brown web site. See link.

https://www.sheldonbrown.com/skewers.html


Last edited by Southcoast on Mon Sep 11, 2017 10:39 am, edited 1 time in total.

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 Post subject: Re: Krapf (Columbus SL)
PostPosted: Mon Sep 11, 2017 10:10 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 7546
Location: Bristol
That seatpost looks like a heavyweight - a careful change should see you shed some good weight. Likewise some Veloflex master tyres, and then that back wheel isn't the lightest thing in the world


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 Post subject: Re: Krapf (Columbus SL)
PostPosted: Mon Sep 11, 2017 10:33 am 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
cce wrote:
that back wheel isn't the lightest thing in the world

Oh yess,rear wheel is like 1140gr naked.I will go for something like 900gr or less.
Seatpost is ok-ish cut to size.But it is cheap and ugly, want to change it.Problem is its 27.0mm the popular size is 27.2(dosn't fit my frame)
Veloflex Master 23 is looking good.


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 Post subject: Re: Krapf (Columbus SL)
PostPosted: Mon Sep 11, 2017 10:35 am 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
Southcoast wrote:
Are the quick release screwers modern external cam type?


https://www.dirtbike.ro/bazar/set-qr-ti ... 5mm-346112 I got it from here. Will read it,tnx.


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 Post subject: Re:
PostPosted: Thu Jan 18, 2018 3:18 pm 
Newbie

Joined: Sat Sep 09, 2017 12:55 pm
Posts: 7
Made some upgrades:
-Merida road control Brake Pads (32gr. vs 55gr. stock pads)
-Hollow mounting bolt+Custom stuff for rear Derailleur
-Better quality pedals( Bearing's instead of cup and cone cheap china sh*t)
-Front tire Conti. GP 4000S2 retro style! (23c)
-Saddle from SMP Composit to SMP Evolution
- Bottle Elite Eroica Vintage, and Elite Ciussi Inox bottle cage.(Much nicer this way)

http://imageupper.com/g/?S110001006G1516277342566534 <Img


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 Post subject: Re:
PostPosted: Thu Jan 18, 2018 7:24 pm 
Old School Hero

Joined: Sat Apr 20, 2013 7:27 pm
Posts: 195
You could probably trim the brake cables for a few grams!


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