Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Sat Dec 10, 2016 12:33 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062

All times are UTC+01:00

Post new topic  Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Sun Oct 14, 2012 11:36 am 

Joined: Sun Oct 14, 2012 11:16 am
Posts: 9
Hey All,

I'm going to start by giving a bit of back story, it might help to clarify my motives for this project later on. Not so long ago a friend was selling for a good price a single speed Marin Inverness. I hadn't cycled for a good while but I was instantly taken by it, decided I could start cycle commuting in London and bought the bike. Largely I liked the fact that it was around 8.2kg (supposedly) which made it very easy to lug about. Unfortunately I had it for about three weeks before it got stolen from outside of my work in central London. There seems to be something empty about the idea of just biting the bullet and buying a new bike, so I decided to build a completely new one; still single speed with freewheel but to make it as light as possible within a budget. It'll be a challenge as well as a good winter project with a ridable end product to boot.

Looks are no object and scratches / cosmetic damage are of no concern. I'm happy to drill and make modifications etc and of course I expect most parts to be second hand / from eBay.

Now for the big question, no matter how subjective the answer may be: For a budget of £350 - £400, how light could I build such a bike? I was hypothesising 6kg but that could be pure fantasy! If anyone has part recommendations or any other relevant advice I would greatly appreciate it!


Posted: Sun Oct 14, 2012 11:36 am 

PostPosted: Sun Oct 14, 2012 7:17 pm 

Joined: Thu Jul 14, 2011 10:10 pm
Posts: 198
Yep, I believe it is possible.
Frame: Lightish alu 1300grams (cannondale/principia/trek etc.)
Fork: full carbon 400grams
Wheels: in 1300-1500 grams range (alloy or used carbon, depends on brake setup) Look for a bargain.
Tires: 200 grams models with decent protection layer (GP4000s/ etc) I like Duranos for commuting with light tubes
Crank: nice and light and used for fraction of the pricew (dura ace 7700 if you can get hold of it cheap)
Components: lightweight alloy stem/bars/seatpost rideable saddle like Flite or whatever suits You
Brakes: standard road? or V's? Get high end ones (xtr/ da/ kcnc or Avid SD Ti)
I love this:

PostPosted: Sun Oct 14, 2012 7:55 pm 

Joined: Sun Oct 14, 2012 11:16 am
Posts: 9
Great! Thank you very much for the info Victor. That bike is certainly a brilliant example of a wolf in sheep's clothing. At the moment I'm looking at the following frame, quoted at 2kg by the seller

PostPosted: Sun Oct 14, 2012 9:44 pm 
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 2823
Location: Glermsford, Suffolk U.K
Durace parts are never cheap though. A £400 single speed is readily doable

Frame/fork 1800g
Cranks Miche Express ~600g
BB ~300g
Wheels ~1500g
Seat 300g
Seatpost ~300g
Bars ~300g
Stems ~170g
Tyres 420g
tubes 200g
rim tape 20g
Brake levers 260g
brakes ~ 330g
cables 150g
tape 40g
chain 250g

I think a build will come in around 7kg. Your budget will be blown on frame/fork + wheels and tyres. Thant leaves not much for the other parts, that means cheap heavy ones. The wheels for 1500g would have to be pretty special and not your standard track wheels. You would find itr easier to use a vertical dropout frame and cassette rear wheel and use a single speed sprocket + spacer with a cheap tensioner. Most track wheels in the budget you will be looking at will be heavier than 1500g. Most track hubs are not light.


PostPosted: Mon Oct 15, 2012 8:43 am 

Joined: Sun Oct 14, 2012 11:16 am
Posts: 9
Thanks bm0p700f, I agree once the frame and wheels are purchased the going will get a bit tougher. I won the frame I previously linked for £91 so we'll see how that weighs in once I get it and go from there. On a side-note I also originally hail from Woodbridge in Suffolk!

PostPosted: Tue Oct 16, 2012 1:07 pm 

Joined: Sun Oct 14, 2012 11:16 am
Posts: 9
Although my fervent research is going well, can someone please give a personal opinion on whether converting the rear hub on these to single speed would be a good idea?
http://www.ebay.co.uk/itm/290787906309? ... 1423.l2649

Edit: I have determined that it is, still feel free to disagree! :D

Posted: Tue Oct 16, 2012 1:07 pm 

Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 6 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Attachment(s) advice on a build - Marinoni Ciclo refurbish project

in Road




Fri May 06, 2016 12:05 pm

tigoose View the latest post

There are no new unread posts for this topic. PC8 Project

in Road




Fri Mar 18, 2016 1:16 pm

itsacarr View the latest post

There are no new unread posts for this topic. New project - some questions ....

in Road




Sat Jan 30, 2016 6:30 am

Kupepe View the latest post

There are no new unread posts for this topic. Shimano E-Tube Project - Older Versions

in Road




Fri Dec 02, 2016 11:01 pm

androidavies View the latest post

This topic is locked, you cannot edit posts or make further replies. New Shoe Time !

in Road




Fri Jul 29, 2016 9:42 pm

cyclespeed View the latest post

All times are UTC+01:00

Who is online

Users browsing this forum: 2imp, Bing [Bot], Madone69, shadowman, srshaw, victorduraace, wilwil and 17 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited