ZONAL

Tubes for amateurs: road and mtb competition frames.

The alloy selected by Columbus


  • Very good TIG weldability
  • Mechanical characteristics (T6 state):
    Rm = 420 N/mm2, Rs 380 N/mm2 Ap5> 12%
    Recommended weld material for TIG welding: 5836/5780/5183/5556

The characteristics of the Zonal tubes

  • Elevated strength/weight ratio thanks to the use of lightened tubes.
    Very good TIG weldability
  • It is necessary to perform an artificial ageing treatment after the welding of the frame in order to improve the mechanical performan-ces (6 hours at a temperature of 90C followed by 4 hours at 150C).
  • Integrated Head Tube option

Reasons to choose Zonal

  • Athlete: Zonal allows for the production of frames with a reasonable weight and adequate characteristics of strength thanks to the use of the Megatubes.
  • Framebuilder: the easy workability of the tubes allows for the production of reliable and light frames. It is recommended to perform an artificial ageing treatment.



The weight refers to sized and mitered tube for a 54cm c-c road frame or a 18" (45.5cm) MTB frame
  

         Max shortage mm
                 Cutting area
a Tube Stocked r Tube available to special order only


     

CODE AVAILABILITY DIMENS. (mm) SPECIFICATIONS WEIGHT TUBE
ZALH11610
TOP TUBE
a 35
L=610
1.5/1.7/1.4
E Shaped Megatube Stocked. See Below
Round double butted 171 g
ZALH12670
DOWN TUBE
a 42
L=670
2.2/1.0/1.4
C Shaped Megatube Stocked. See Below
Round double butted 256 g
ZALM13635
SEAT TUBE
a 31.7
L=635
2.25/1.0/1.7
Round double butted 153 g
ZAL915560002
SEAT STAY
a 19
L=560
1.4
Round tapered 96 g
ZAL1140V410
CHAIN STAY
a 29.5/18
L=420
1.5
Oval tapered 116 g zal1140v410
ZAL1140V420
CHAIN STAY
a 36/19
L=425
1.5
Oval tapered 141 g zall140v420
ZALA18210
HEAD TUBE
a 35
L=600
3
Round 79 g
ZALC18210
HEAD TUBE
a 41
L=210
4
Round 142 g
ZV7STR
HEAD TUBE
a 45
L=115, 165, 205
2.5
Round 120 g

 

TOP TUBE DOWN TUBE
From round tubes... 35 42
To MEGATUBE a a

 

Suggested set
Road frame
TT ZALH11610..112E 40/30 Teardrop 1.5/1.1/1.4
DT ZALH12670.112C 50/35 Teardrop 2.2/1.0/1.4
ST ZALM13635 31.7 2.25/1.0/1.7
CS ZAL1140V410 29.5/18 Oval 1.5
SS ZAL915560002 19 1.4
HT ZALA18210 35 3
Weight of 8 tubes road frame for 54 cm center to center = 1124 g

 

Suggested set
ATB frame 
TT ZALH11610..112E 35 1.5/1.1/1.4
DT ZALH12670..112C 42 2.2/1.0/1.4
ST ZALM13635 31.7 2.25/1.0/1.7
CS ZAL1140V420 36/19 Oval 1.5
SS ZAL915560002 19 1.4
HT ZALC18210 41 4
Weight of 8 tubes MTB frame for 45,5 cm (18") = 1190 g