Thread: Bianchi L'eroica
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Old 01-18-21 | 03:33 PM
  #72  
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mstateglfr
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From: Des Moines, IA

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Originally Posted by icemilkcoffee
It's made of Zona tubing, which is just seamless 4130 CrMo. For $3000 you'd expect at least SL or Spirit.
Is that all Zona is...just seamless 4130? Zona has a higher tensile strength and is typically butted more aggressively.
An 853 main triangle bike can have the same butting profile as a 631 main triangle. The higher level tubing doesnt necessarily make it lighter or ride better.

Zona can build up a frame with short butted 7/5/7 top and down tubes, 8/6 seat tube, 7 chainstays(or 8/6 s bend), and .7 16ga seat stays. I dont see much generic 4130 with that setup.
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