Nova Cycles Supply Inc. :: TUBES STEEL :: ZONA EXTERNAL BUTT SEAT TUBE 620

ZONA EXTERNAL BUTT SEAT TUBE 620

ZONA EXTERNAL BUTT SEAT TUBE 620

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Array

ZONA EXTERNAL BUTT SEAT TUBE

DxW1/W2/W3xL = 28.6 x 0.8/0.6/1.1 x 620mm

Ext Butt Dia = 29.6  Takes a 27.2 seat pin

B1/B2 = 245/75  

*Columbus calls out 1.2mm wall in their catalog for the external butt wall thickness*

T1/T2 = 40/40

Columbus PN# ZON113620

The externally butted seat works great for non-lugged applications.

Filet brazing, or TIG benefit from the thicker wall at the top of the seat mast. Fights distortion and allows direct joining without reinforcements of any kind.  Outside diameter at the top is 29.6mm. The rest of the length of the tube is 28.6mm o.d.

AVAILABLE IN 550mm and 620mm

Details
SKU COL_KMST_28.6_620
Quantity in stock 13 item(s) available
Weight 0.73 lbs
New SKU 200551
 
Price: $26.16
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