TECHNOLOGY STORIES BIKE INFO, GEOMETRY ... - Vintage Trek

For 2002
Our steel frame geometry
remain unchanged
from 2001.
Geometry
These bikes have angles
and top tube lengths that
put a rider in a more
upright position. The
angles have been adjusted
to make the bike stable
with the more recreational
weight distribution (as
opposed to the forward,
aggressive position of racing
bikes).
Ride
Although our steel
mountain bikes are more
upright than our racing
bikes, it’s a subtle difference.
These are not cruisers
or hybrids, but simply
more comfortable
mountain bikes. The more
upright position allows a stable ride, and easier balance
for the more casual rider. Extremely technical terrain
may be more of a challenge, but this bike wasn’t
designed for the rider who spends the majority of their
time attacking Moab slickrock or slippery Mt. Snow
singletrack roots. By contrast, these bikes make cruising
dirt roads and doubletrack fun and easy.
Frame details
The advantage of Cro-Moly steel is higher tensile
strength and fatigue resistance; it’s no more rigid than
good hi-tensile steel. For this reason, we’ve only used
Cro-Moly in the seat tube, which can see lots of flexing
as the seatpost quick release is used. For the rest of the
bike, we’ve focused on providing the best ride for the
cost. By carefully designing the frame geometry, tubing
wall thicknesses, and tubing diameters, we’ve managed
to create a frame that rides like those costing much
more. This allows riders a viable high quality alternative
to chain store bikes which don’t ride nearly as well.
Full top tube cable routing keeps the cables out of the
muck for friction free shifting and braking.
The rear dropouts on these frames are forged steel.
Forging provides the highest structural integrity, which
is very important for keeping the dropouts in alignment
with the rest of the frame. If they are not in alignment,
premature wear of hub bearings may result, along with
imprecise shifting of the rear derailleur.
Although designed for casual riding, we see folks
riding these bikes on long dirt rides, and even road centuries.
To keep you hydrated and happy, our steel bikes
have 2 water bottle mounts, except the 13, 16.5”, and
Ladies frames. These frames size do not have enough
seat tube to allow a water bottle mount to be used.
MILLIMETERS
INCHES
Frame sizes
Head angle
Seat angle
Standover
Seat tube
Head tube
Eff top tube
Chainstays
BB height
Offset
Trail
Wheelbase
Standover
Seat tube
Head tube
Eff top tube
Chainstays
BB height
Offset
Trail
Wheelbase
2002 Trek Technical Manual
Steel ATB
13 16.5 18 19.5 21 22.5 13W 17W 20W
70.0 70.5 70.5 70.5 71.0 71.0 70.0 70.5 70.5
74.0 73.5 73.0 73.0 72.5 72.0 74.0 73.5 73.0
638 697 722 754 790 827 580 501 501
330 419 457 495 533 572 330 432 508
90 90 90 105 145 185 90 103 143
528 545 555 565 575 585 528 542 550
435 435 435 435 435 435 435 435 435
288 291 291 293 293 295 288 283 283
42 42 42 42 42 42 42 42 42
78 74 74 74 71 71 78 74 74
1023 1032 1038 1049 1051 1057 1023 1027 1031
25.1 27.4 28.4 29.7 31.1 32.6 22.8 19.7 19.7
13.0 16.5 18.0 19.5 21.0 22.5 13.0 17.0 20.0
3.5 3.5 3.5 4.1 5.7 7.3 3.5 4.1 5.6
20.8 21.5 21.9 22.2 22.6 23.0 20.8 21.3 21.7
17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1
11.3 11.5 11.5 11.5 11.5 11.6 11.3 11.1 11.1
1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7
3.1 2.9 2.9 2.9 2.8 2.8 3.1 2.9 2.9
40.3 40.6 40.9 41.3 41.4 41.6 40.3 40.4 40.6
49