| The Front Triangle tubes are organized in order
of increasing diameter, and within groups by increasing wall |
|
|
| thickness.
Dimensions are metric unless otherwise indicated. Yield and tensile strengths
are in units of 1000 |
|
| Psi.
For detailed information about the various alloys click here. |
|
|
|
| Tubes
with unequal double butting are marked with paint at one end. An asterisk
(*) in the chart shows where |
|
| the tube is marked. |
|
|
|
| Double
asterisks (**) show where external butting occurs. |
|
| The
chart will print out in 3 pages if you set the browser font size to 10 points. |
|
| For Information
on True Temper S-3 |
|
| 25.4mm (1.000") |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| OX PLATINUM |
.7/.4/.7 |
580 |
60* |
51 |
321 |
38 |
110 |
185/195 |
HOXPLAT02 |
*Paint |
| OX PLATINUM |
.7/.4/.7 |
620 |
60* |
51 |
361 |
38 |
110 |
185/195 |
HOXPLATOI |
*Paint |
| OX PLATINUM |
.7/.45/.7 |
612 |
102 |
64 |
280 |
64 |
102 |
185/195 |
HOXGOLD-TT7 |
|
| VERUS HT |
.7/.5/.7 |
600 |
102 |
62 |
270 |
63 |
102 |
175/185 |
HRCXTT2 |
|
| VERUS |
.9/.6/.9 |
600 |
102 |
63 |
270 |
63 |
102 |
100/110 |
RC2TT |
|
| 28.6mm (1.125") |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part |
Special Features |
| OX PLATINUM |
.7/.4/.7 |
580 |
60* |
51 |
312 |
38 |
110 |
185/195 |
HOXPLAT05 |
*Paint |
| OX PLATINUM |
.7/.4/.7 |
620 |
76 |
51 |
365 |
38 |
90 |
185/195 |
HOXPLAT04 |
|
| OX PLATINUM |
.7/.4/.7 |
680 |
89* |
51 |
392 |
38 |
110 |
185/195 |
HOXPLAT03 |
*Paint |
| OX PLATINUM |
.7/.46/.7 |
612 |
114* |
51 |
320 |
51 |
76 |
185/195 |
HOXGOLD-TT3 |
*Paint |
| VERUS HT |
.76/.5/.65 |
650 |
102* |
51 |
345 |
51 |
102 |
175/185 |
HOXPLAT-STI |
*Paint |
| OX PLATINUM |
.7/.5/.65 |
650 |
102* |
51 |
340 |
51 |
102 |
185/195 |
HOXGOLD-TTI |
*Paint |
| VERUS HT |
.7/.5/.7 |
600 |
76 |
51 |
320 |
51 |
102 |
175/185 |
HOXRCXTT |
|
| VERUS HT |
.8/.5/.8 |
650 |
89 |
51 |
358 |
51 |
102 |
175/185 |
HOXRCXST |
|
| VERUS HT |
.8/.56/.8 |
650 |
178* |
63 |
244 |
63 |
102 |
175/185 |
HRCXDT2 |
*Paint |
| VERUS |
.9/.6/.9 |
620 |
102 |
63 |
290 |
63 |
102 |
100/110 |
RC2DT |
|
| VERUS |
.9/.6 |
650 |
102 |
63 |
485 |
- |
- |
100/110 |
RC2ST |
|
| VERUS |
1/.7 |
540 |
64* |
63 |
413 |
- |
- |
100/110 |
AVRST |
*Paint |
| 28.6mm External Butt |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| VERUS |
.99/.56/.97 |
635 |
178 |
38 |
419 |
38** |
76** |
100/110 |
HOXPLAT-ST5 |
**Ext. Butt, 76mm |
| OX PLATINUM |
.99/.56/.97 |
635 |
178 |
38 |
419 |
38** |
76** |
135/150 |
HOXPLAT-ST7 |
** Ext. Butt, 76mm |
| 1 VERUS |
.8/1.3 |
560 |
- |
1 - |
452 |
38** |
70** |
100/110 |
AVROBST560 |
** Ext. Butt, 70mm |
| 1 VERUS |
.8/1.3 |
580 |
- |
- |
472 |
38** |
70** |
100/110 |
AVROBST580 |
** Ext. Butt, 70mm |
| 1 VERUS |
.8/1.3 |
649 |
- |
- |
541 |
38** |
70** |
100/110 |
AVROBST649 |
** Ext. Butt, 70mm |
| 30mm (1.181") |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part $ Number ] |
Special Features |
| VERUS HT |
.81/.56/.9 |
635 |
65 |
51 |
303 |
89 |
127* |
135/150 |
HTTHBDDT |
*Pamt |
| VERUS |
.81/.56/.9 |
635 |
65 |
51 |
303 |
89 |
127* |
100/110 |
TTHBDDT |
*Paint |
| 31.8mm (1.250") |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| OX PLATINUM |
.7/.4/.7 |
580 |
60* |
51 |
321 |
38 1 |
110 |
185/195 |
HOXPLAT08 |
*Paint |
| OX PLATINUM |
.7/.4/.7 |
620 |
76 |
51 |
365 |
38 |
90 |
185/195 |
HOXPLAT07 |
|
| OX PLATINUM |
.7/.4/.7 |
680 |
89* |
51 |
392 |
38 |
110 |
185/195 |
HOXPLAT06 |
*Pamt |
| OX PLATINUM |
.7/.45/.7 |
650 |
102 |
51 |
345 |
51 |
102 |
185/195 |
HOXGOLD-DT3 |
|
| OX PLATINUM |
.7/.45/.7 |
645 |
63* |
51 |
378 |
51 |
102 |
185/195 |
HOXGOLD-TT2 |
*Paint |
| OX PLATINUM |
.7/.5/.7 |
665 |
102* |
63 |
271 |
63 |
165 |
185/195 |
HOXGOLD-TT4 |
*Paint |
| VERUS HT |
.7/.5/.7 |
665 |
102* |
63 |
271 |
63 |
165 |
175/185 |
HOX3TTI |
*Paint |
| VERUS HT |
.8/.5/.7 |
665 |
102* |
63 |
271 |
63 |
165 |
175/185 |
HOX3TT2 |
*Pamt |
| VERUS HT |
.76/.56/.76 |
610 |
III |
51 |
152 |
51 |
244* |
135/150 |
HOX2TT |
*Paint |
| VERUS HT |
.8/.5/.8 |
650 |
102 |
51 |
332 |
51 |
114 |
175/185 |
HOXRCXDT |
|
| VERUS HT |
.8/.6/.7 |
645 |
102* |
51 |
335 |
51 |
127 |
185/195 |
HOXGOLD-DT2 |
*Paint |
| VERUS |
.9/.6/.9 |
600 |
89 |
63 |
295 |
63 |
89 |
100/110 |
AVRTT |
|
| VERUS |
.9/.6/.9 |
635 |
89 |
63 |
330 |
63 |
89 |
100/110 |
AVRDT |
|
| VERUS HT |
.9/.6/.9 |
635 |
89 |
63 |
330 |
63 |
89 |
135/150 |
HAVRDT |
|
| VERUS HT |
.7/.6 |
635 |
147 |
51 |
437 |
- |
- |
135/150 |
VERUS STI |
|
| OX PLATINUM |
.7/.6 |
635 |
147 |
51 |
437 |
- |
- |
135/150 |
HOXPLAT-ST6 |
|
| 34.9mm (1.375") |
Walls |
Length |
1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| OX PLATINUM ' |
.7/.4/.7 |
640 |
76* |
51 |
365 |
38 1 |
110 |
185/195 |
HOXPLATIO |
*Paint |
| OX PLATINUM |
.7/.4/.7 |
691 |
89 |
51 |
423 |
38 |
90 |
185/195 |
HOXPLAT09 |
|
| VERUS HT |
.7/.6/.7 |
665 |
100* |
63 |
271 |
63 |
165 |
175/185 |
HOX3DTI |
*Paint |
| 1 VERUS HT |
1.1/.9/1.1 |
585 |
102 |
51 |
280 |
51 |
102 |
135/150 |
HOX2DT02 |
|
| 44*4mm (1.750") |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| VERUS HT |
1.1/.8/1 |
549 |
102 |
51 |
244 |
51 |
102 |
135/150 |
HOX2DT05 |
|
| VERUS HT |
1.1/.8/1 |
585 |
102 |
51 |
280 |
51 |
102 |
135/150 |
HOX2DT04 |
|
| Special Tandem Shapes And
Aero Shapes |
Walls |
Length |
Butt 1 |
Taper 1 |
Center |
Taper 2 |
Butt 2 |
YId/Tensile |
Part Number |
Special Features |
| 25.4mm Round, Oval Ends |
.7/.5/.7 |
600 |
102 |
63 |
270 |
63 |
102 |
135/150 VHT |
HVELTT |
31.8x17.8 oval@90° |
| 26.6x42.6 mm |
.7/.6/.7 |
724 |
152 |
51 |
368 |
51 |
102 |
135/150 VHT |
HVELDTI |
Teardrop X-Section |
| 26.7x37.2 mm |
.7/.5/.7 |
711 |
152 |
38 |
381 |
38 |
102 |
135/150 VHT |
HVELDT2 |
Teardrop X-Section |
| Curved Aero Seat |
.68/.58 |
754 |
76 |
38 |
648 |
- |
- |
135/150 VHT |
HVELSTI |
41x27 Oval Bottom |
| Curved Aero Seat |
.68/.58 |
754 |
76 |
38 |
648 |
- |
- |
135/150 VHT |
HVELST2 |
34.9 Round Bottom |
| TANDEM TOP TUBE |
.9/.6/.9 |
1296 |
152 |
38 |
380 |
38 |
|
|
|
34.9 Round |
| (3 BUTTS) |
.9/.6/.9 |
|
|
|
368 |
38 |
76* |
100/110 V |
TANDTT |
*Paint |
| 34.5x54.9mm Oval |
0.9 |
692 |
- |
- |
- |
- |
- |
100/110 V |
FI-TDBT |
BB Connector Tube |
| OX
PLATINUM - AIR HARDENABLE STEEL TUBING |
|
| TRUE
TEMPER'S OX PLATINUM Series is based on state of the art steel metallurgy.
The |
|
| metallurgists
at True Temper began with an aerospace grade of air hardening steel and |
|
| modified
it to enhance its properties for light weight bicycle frames. The ultimate
tensile |
|
| strength exceeds 195,000 psi. |
|
| Air
hardenable steels are desirable for high performance welded steel frames.
At the edges of |
|
| the
molten weld pool, as the metal freezes, an unavoidable microscopic notch
is formed. This is |
|
| a
stress concentrator that magnifies the actual stresses of riding by a factor
of 4 to 6 times. The |
|
| weld
is relatively small and cools so quickly that metallurgical changes occur
creating |
|
| localized
hard and brittle areas, if the alloy is not specifically designed to avoid
this. |
|
| Air
hardening steels are metallurgically designed so that as the steel cools
and solidifies from |
|
| the
molten state in air, the steel hardens to an even higher strength. The metallurgists
must |
|
| control
the alloying elements so that the hardened steel is also tough and able
to absorb |
|
| impacts,
rather than brittle and subject to fracturing. |
|
| True
Temper not only solved these problems, but went further: Most heat treated
steels tend to |
|
| anneal,
or soften, when heated between about 1000°F and 1500°F. TIG Welding, which
heats |
|
| the
joint up to the melting point, must heat the part of the tube adjacent to
the weld up into this |
|
| annealing
range, thus locally weakening the tube. This drop in strength has no effect
on every |
|
| day
riding, but it does reduce the potential long term fatigue life and, in
a crash, can lead to |
|
| buckling of the frame. |
|
| OX
PLATINUM is very resistant to this annealing. Thus an OX PLATINUM frame
will |
|
| survive
crashes better, and also have a much better fatigue life. |
|
| When
used on silver brazed lugged frames, OX PLATINUM neither air hardens nor |
|
| anneals.
Your frame is at 195,000 psi strength throughout, with no weaknesses! |
|
| The
PLATINUM Series alloys are ideal for both lugged and lugless frame construction! |
|
| PLATINUM
main triangle tubes come in a range of wall thicknesses and butt lengths
so |
|
| builders
can fine tune the frame's stiffness and strength to the rider's needs. |
|
|
|
| VERUS
HT - SPECIAL HEAT TREAT 4130 STEEL |
|
| True
Temper's VERUS HT Series tubing is made possible by True Temper's decades
of |
|
|
| experience
in the heat treatment of 4130 steels for maximum performance. As steels
are |
|
| strengthened
by heat treatment, the ductility is reduced. If you were to heat treat 4130
steel as |
|
| hard
as possible, the tensile strength would go all the way up to 255,000 psi.
But the steel |
|
| would
very brittle and subject to failure by fracture, making it unsuitable for
bike frames. The |
|
| metallurgists
at True Temper designed the VERUS HT heat treatment to reach the high level
of |
|
| 175,000psi.,
while still maintaining good ductility. |
|
| VERUS
HT is also available at 150,000 psi tensile strength, midway in strength
between True |
|
| Temper's
110,000 psi Stress Relieved VERUS steel, and their 175,000 psi VERUS HT
steel |
|
| tubing.
Naturally, frame builders use this tubing when they want characteristics
between these |
|
| two
strengths of steels. This VERUS HT maintains the workability of the stress
relieved |
|
| VERUS,
and approaches the strength of the VERUS HT Special Heat Treat. |
|
| The
VERUS HT tubes, when designed for road bikes, gives you a light and lively
frame which |
|
| will
hold its alignment. In mountain bike diameters, you get a frame that goes
where you want |
|
| it
to, and will survive many more seasons than aluminum frames, while riding
much better for |
|
| all
those miles. Knowledgeable aggressive riders know that steel frames have
just enough |
|
| compliance
to improve handling on rough terrain. |
|
|
|
| VERUS:
With all the hype in the bike industry about high strength this and higher
strength |
|
| that,
why would True Temper even offer a 110,000 psi steel? Well, caviar is a
lot |
|
| fancier
than pasta, but if you're going on a century ride, pasta is the better choice.
True |
|
| Temper's
RC2 Series tubing has twice the strength of a basic steel, so it is definitely
a high |
|
| strength
steel. It has been proven plenty strong for bicycle frames when used in
wall |
|
| thicknesses of .6mm or greater. |
|
| True
Temper's VERUS Stress Relieved 4130 steel is designed for reliability that
is even |
|
| better
than commercial grade 4130. This heat treatment removes internal stresses
left over |
|
| from
the manufacturing process. The end result of removing internal stresses
is that the tube |
|
| (and
your frame) lasts much longer. |
|
| The
trade off for increased strength in ANY material is decreased ductility.
The real world |
|
| result
is that the failure mode gradually changes from controlled gradual bending
to instant |
|
| catastrophic
fracture. Heat treatment can vary the strength of 4130 steel from a very
ductile |
|
| 70,000
psi up to a hard and brittle 225,000 psi. At 100,00 psi, Stress Relieved
4130 is a very |
|
| reliable
material with optimized properties for bicycle use. |
|
| But,
you say, having absorbed all the hype, "Doesn't low strength mean high
weight?" Not |
|
| necessarily.
It turns out that, by the time you make a steel bike stiff enough that it
feels great, |
|
| you
have used enough steel in the tube walls to lower the stresses to where
you don't need a |
|
| high
strength steel to withstand the loads and still have a good safety factor. |
|
| For
these reasons, True Temper uses Stress Relieved 4130 steel for the general
purpose |
|
| VERUS
main triangle tubing, seat stays and chain stays, and its fork blades. (There
is a lot of |
|
| marketing
effort going into graphite composite fork blades these days. Graphite composites |
|
| have
one favorite failure mode: catastrophic fracture. Me, I'll continue to ride
steel forks, |
|
|
| thank you.) |
|
|
|
|
|
|
|
|
|
|
|
|