sku # DT-ZONM12670
Columbus Zona down tube for steel bicycle frames - 31.7 diameter - .8/.5/.8 wall thickness. Length = 670
333g - Weight is based on a representative tube. Actual weight may vary slightly.
Please see tube graphic (in the image gallery for this product) as a guide for the following specs.
OD=31.7 W1=.8 WC=.5 W2=.8 L1=100 T1=40 LC=370 T2=40 L2=120