1998 Klein Bicycle Corporation Pinnacle Base

Design
Flat Bar, Rigid, suspension corrected
Frame
Aluminum
Fork
Steel
Features
Rim brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category

Geometry

46cm / 18in
51cm / 20in
56cm / 22in
Stack
564mm
560.9mm
601.9mm
Reach
374.5mm
393.2mm
397.7mm
Stack to Reach Ratio
1.51:1
1.43:1
1.51:1
Seat Tube Length, Unknown
457.2mm
508mm
558.8mm
Top Tube Length, Effective/Horizontal Center
559.1mm
576.8mm
594.5mm
Top Tube Length, Actual C-C
533mm
557mm
576mm
Top Tube Slope
14deg
8deg
7deg
Head Tube Angle
70deg
70deg
70deg
Seat Tube Angle
72deg
72deg
72deg
Bottom Bracket Drop
47.1mm
42mm
36.9mm
Bottom Bracket Height
292.1mm
297.2mm
302.3mm
Chainstay Length
430.5mm
430.5mm
430.5mm
Chainstay Length Horizontal
428mm
428.5mm
428.9mm
Front-Center
605.1mm
632.1mm
651.6mm
Front-Center Horizontal
603.3mm
630.7mm
650.6mm
Wheelbase
1031.2mm
1059.2mm
1079.5mm
Fork Offset/Rake
44.4mm
44.4mm
44.4mm
Trail
76.2mm
high
76.2mm
high
76.2mm
high
Mechanical Trail
71.6mm
71.6mm
71.6mm
Wheel Flop
24.5mm
24.5mm
24.5mm
Standover Height
683.3mm
741.7mm
797.6mm
Tire to Pedal Spindle
95.9mm
170 mm cranks
122.9mm
170 mm cranks
142.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
122.1mm
170 mm cranks
127.2mm
170 mm cranks
132.3mm
170 mm cranks

Base Build

46cm / 18in
51cm / 20in
56cm / 22in
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
2.35in
2.35in
2.35in
Tire Width Max
2.35in
2.35in
2.35in
Tire Outer Diameter
678.4mm
678.4mm
678.4mm
Bike Length with Tires
1709.6mm
1737.6mm
1757.9mm

Published Sizing Recommendations

Height
5 ft 2 in
to
5 ft 5 in
5 ft 6 in
to
5 ft 9 in
5 ft 10 in
to
6 ft 0 in

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Source:http://www.vintage-trek.com/Trek-Fisher-Klein-Lemond/1989klein.pdf