tracknut

http://www.youtube.com/watch?v=i9qbLsO9xXY

What a great idea - I know a whole lot of people who would be keen!

Quite correct - Mavic GP4's IMHO are the best classic rims - have them on my Vitus 979 with tubbies inflated to 12 bar, rolls so well you have to use your brakes to slow down when coasting uphill!

big copper rivets

http://www.crank.co.za/wp-content/uploads/2009/11/pf.jpg

http://s3files.core77.com/blog/images/1873monocycl.jpg

http://www.techvert.com/wp-content/uploads/2010/06/motorbike.jpg

http://www.speedbicycles.ch/bikes/304/bigPic/speed_013.jpg

http://www.speedbicycles.ch/bikes/109/titel.jpg http://www.speedbicycles.ch/bikes/109/bigPic/speed_017.jpg

http://www.forum.light-bikes.de/showthread.php?t=22216&page=17

This is a DuraAce derailleur hand modified...http://i1322.photobucket.com/albums/u570/Stefan-Griep/Umgestaltung%202-0/DSC00753_zpsea8f7074.jpg

miles and miles of them!

http://2.bp.blogspot.com/-wo4t3hJfReE/UNei-mHtAwI/AAAAAAAAAnQ/l4dPtF9wKJ4/s1600/CampyCoasterarm.jpg Campy back pedal brake - blow me down!

http://www.speedbicycles.ch/bikes/224/bigPic/speed_008.jpg

Yeah .. I know soft bike porn

http://www.speedbicycles.ch/bikes/241/bigPic/speed_016.jpg

http://www.speedbicycles.ch/bikes/224/bigPic/speed_016.jpg

http://4.bp.blogspot.com/-v3C0hw2mMCo/T2skoFly3NI/AAAAAAAABD4/pnL4ty1gzd4/s1600/arab+032.jpg

http://3.bp.blogspot.com/-MnqR-LtQ__4/T2qqnoHvh1I/AAAAAAAABBY/6vYYmC2U2yo/s1600/arab+009.jpg

http://2.bp.blogspot.com/-bZgVmzxb61I/UYUgz42NlWI/AAAAAAAABqE/IW_uM8ZXSt8/s1600/69+002.jpg

http://2.bp.blogspot.com/-Qb_ddK7JObg/UM_WrpJaa8I/AAAAAAAABc4/9wctFKZpIEA/s640/grpg+002.jpg http://1.bp.blogspot.com/-BtokfFYe-3Y/UM_WylxrDOI/AAAAAAAABdQ/Y25GFHw60zY/s640/grpg+005.jpg

Wonder when the 1st 3d printed bicycle frame will hit the streets?