Reynolds 753

출처: http://www.equusbicycle.com/bike/reynolds/Reynolds-tubing-sizes.jpg

Reynolds 853

Reynolds 753 => 1650   망간 몰리, 회색빛.

Reynolds 631 => Six three one is stronger than 531 by 10%. 853 is a heat-treated version.

Reynolds 531

the 853 is more rigid than the 631. 631 is the air hardening version of 531.

http://www.reynoldsusa.com/english.html

Vitus 980 => 1507

http://www.columbustubi.com/eng/4_4_1.htm
http://astrocycloalpine.weebly.com/columbus-steel-tubesets.html

http://www.equusbicycle.com/bike/columbus/columbuschart.htm