Columbus Track Zone Tubeset
Columbus Zona steel tube set specially selected for our courses.
Type of Bicycles: Track, Single Speed and Internal Gear Hub.
This set of tubes offers a good balance between quality and ease of work, which is why it is particularly recommended for making your first frames.
The tubes are long enough to cover sizes S, M and L.
300.00€
2 in stock
Description
· Columbus main tubes Oversize Zone 24CrMo4 alloy (UTS=9000MPa YS=800Mpa Ap5=12%)
· Upper tube round section 28.6mm Thickness 0.7-0.5-07mm Length 600mm
· Diagonal tube round section 31.8mm 0.7-0.5-0.7mm Length 600mm
· External tapered seat tube round section 28.6mm 0.8-0.6-1.2mm Length 620mm
· Rear Chainstays O.D. 16x30mm thickness 0.8-0.6mm Length 425mm
· Rear Braces O.D. 16mm thickness 0.7mm Length 560mm
· Cylindrical steering tube O.D. 36mm thickness 1.1mm Length 200mm for external steering and 1 1/8″ fork
· 68mm ISO thread bottom bracket axle.
· Horizontal toe caps made of laser cutting with stainless steel reinforcement.
· Rear brake bridge
· Three brake sheath stops and cable guide
· Blind supports for 1 x stainless steel bottle holder
. 14 Brass Rods 2mmm UTS 450MPa, Solidus 870 – Liquidus 890 Cº * (Recommended Borax LFB Flux Cycle Design – Red Cap)
· 1 Silver Rod 48% 1mm UTS 550Mpa, Solidus 640º – Liquidus 680ºC for bottle holder supports and toe reinforcements * (Borax recommended Stainless Light Flux Cycle Design – Blue Lid)
· Includes original Columbus Zona sticker.
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