heckler 2 hero 1
heckler 2 detail 1

Overview

Model Version:2
Production Start:1997
Production End:1999
Suspension/Pivot System:Single Pivot
Material:Aluminum - 6000 series
Rear Wheel Travel:100mm
Size Range:14", 16", 18", 20". 22"

Frame Specs

Compatible Forks:63mm to 100mm - 100mm travel max
Headtube/Headset:1-1/8" Straight - External. S.H.I.S EC34/28.6 EC34/30
Seat Post:1997 to Early-1998 Frames have a 26.8mm seatpost diameter - Mid-1998-on Frames have a 27.2mm - Measure seat tube ID or current seat post to verify - Minimum insertion 100mm
Front Derailleur:31.8mm Top Pull/Top Swing (Low Clamp)
Front Derailleur Clamp:160mm rotors max
BB Shell Width:68mm - Threaded - ISO
Chainline Spec:50mm
Recommended Max Tire Size:2.2 - may vary by tire and rim model
Brakes:Rim Brake and/or ISO Disc Brake Mounts
Rear Hub:135mm x 10mm (QR style)
Seatpost Clamp:31.8mm

Shock Specs

Rear Shock Eye-to-Eye:7.875” / 200mm
Stroke:2.0”/51mm or 2.25"/ 57mm - Both are compatible - O.E. Air were 2.0” (3.8" R.WT.) - O.E. Coil were 2.25” (4.2" R.W.T.) )
Mounting Bushing Width Front:22mm
Mounting Bushing Width Rear:41mm
Mounting Bolt Diameter Front:8mm
Mounting Bolt Diameter Rear:6mm
Leverage Ratio:1.9 : 1
Rear Shock Setup:Because it is highly likely the original rear shocks on older models are repaired/replaced/ upgraded throughout the lifetime of the frame, we offer some very basic tuning guidelines, and recommend using the original rear shock manufacturers manual for more detailed set-up for the specific rear shock you have. Contact the rear shock manufacturer for info if you do not have it.The key component for set-up with any rear shock here is sag. Once you have that set-up correctly, the rest of the shock settings are fine tuning adjustments (Rebound and Compression damping, etc.) set to rider preference.Recommended sag is 8-13mm at the shock shaft - This equates to approximately 15-25% of the total rear wheel travel. Less sag = a firmer suspension feel.For Air rear shocks, set the air pressure to match the recommended sag. Typically for this model the PSI is approx 25% less than rider weight, but again this varies by rear shock.For Coil rear shocks here is a rough spring size to weight guideline for average coil shocks.
 This can vary based on rear shock model and manufacturer.100-130lbs - 225-250#140-160lbs - 300#170-200lbs - 350#210-240lbs - 400-450#

Torque Specs

FastenerDescriptionPrepTorqueDownload
Main pivot axle and aluminum nutsLoctite 24280 inch lbs-
Shock to frame - socket head cap screws (2)Loctite 24240 inch lbs-
Shock to swingarm - socket head cap screw / nylock nutNone - nylock nut80 inch lbs-
S/A brake plate socket head cap screws (4)Grease20 inch lbs-
Main pivot bearing pinch bolts (2)Loctite 24240 inch lbs-
heckler 2 geometry