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

Fuel
24
New for 2002
From the outside, the Fuel looks the same for 2002.
However, a major change happened under the paint; we
used our new ZR9000 alloy to make all the Fuel frames
15% lighter and 15% stronger.
We also changed the emphasis of use, dividing the
Fuel line in to two types of bikes. The Fuel 100 and
Fuel 98 are spec'd as race bikes, with low weight as the
emphasis. The Fuel 90 series, and the Fuel 80 are spec'd
as adventure bikes, with control and steering rigidity
the premium consideration.
To go with their racing style, we also added some
technology to the 98 and 100 framesets. First, both
bikes get new carbon chainstays and seatstays, further
reducing their weight. They also get a Ti hardware kit.
Finally, the top of the line Fuel 100 has our new OCLV
MC carbon link which even further reduces its weight.
Geometry
The regular Fuel uses Trek’s race-proven Pro
Geometry, explained on page 10. The Fuel WSD uses an
adapted version of the WSD geometry on the WSD ATB
hardtails. It varies slightly to accommodate the suspension,
but handling and fit are very similar.
Ride
The Fuel’s frame offers outstanding pedaling efficiency.
This exceptional frame rigidity also gives the Fuel
it’s ‘riding on rails’ cornering ability.
The Fuel design feels like a hardtail much of the time,
but without the jarring of rigid stays. It climbs well out
of the saddle, it smoothens small bumps for comfort,
and has incredible traction. The traction advantages are
full-time, both climbing and braking hard. This combination
makes the Fuel ideal for racing in technical terrain,
or having fun on a short ride after work. It’s
a great all-round riding bike. And since the weight
penalty is less than a full water bottle, it makes riding a
hard tail seem almost pointless for a lot of people.
Frame details
The Fuel uses ZR9000 aluminum frame technology. A
very oversize, butted and shaped down tube creates a
rigid structure between the bottom bracket and head
tube, for frame stiffness and strength. Speaking of
frame strength, we even added a big butterfly gusset
under the head tube.
The head tube is butted, with a thin mid-section for
low weight, but heavy duty walls at the top and bottom
to support the headset cups.
Full top tube cable routing keeps the cables out of the
muck for friction free shifting and braking.
The rocker design of the Fuel adds rear end torsional
and lateral rigidity. By keeping the connection between
the frame and swingarm stiff, handling is better. So is
pivot durability. Loose pivots allow a frame to flex, as
well as squeak and wear.
The fittings, like dropouts and shock mounts, on the
Fuel are almost all forged aluminum. Forging provides
the highest structural integrity, while the low density of
the aluminum keeps the bike light.
The Fuel uses a special dropout to accommodate a disc
brake adapter. This adapter provides mounting for an
International style rear disc brake.
Fuel bikes have 3 water bottle mounts, except WSD
models have 2.
2002 Trek Technical Manual
MILLIMETERS
INCHES
Fuel
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
MILLIMETERS
INCHES
Fuel WSD
S M L XL
71.0 71.0 71.0 71.0
73.5 73.5 73.5 73.5
691 703 714 724
394 445 495 546
105 125 145 165
550 588 625 641
423 423 423 423
312 312 312 312
39.0 39.0 39.0 39.0
74 74 74 74
1055 1077 1098 1117
27.2 27.7 28.1 28.5
15.5 17.5 19.5 21.5
4.1 4.9 5.7 6.5
21.7 23.1 24.6 25.2
16.7 16.7 16.7 16.7
12.3 12.3 12.3 12.3
1.5 1.5 1.5 1.5
2.9 2.9 2.9 2.9
41.5 42.4 43.2 44.0
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
XS S M
70.0 70.0 70.0
73.5 73.5 73.5
685 717 755
356 406 457
90 90 105
528 532 563
423 423 423
312 312 312
39.0 39.0 39.0
81 81 81
1018 1023 1053
26.9 28.2 29.7
14.0 16.0 18.0
3.5 3.5 4.1
20.8 21.0 22.2
16.7 16.7 16.7
12.3 12.3 12.3
1.5 1.5 1.5
3.2 3.2 3.2
40.1 40.3 41.5