Trek Supercaliber Gen 1 Fox IsoStrut Rear Shock, Performance Series, 235x32.5mm

Detailed Specifications:

• Brand: Fox

• Model: IsoStrut Rear Shock – Performance Series

• Part Number: 972-61-237

• Serial Example: 812050-0186-T (may vary)

• Model Year: 2020 Series

• Bike Compatibility: Trek Supercaliber & E-Caliber Gen 1 only (Size M–XL frames)

• Travel: 32.5mm

• Damper Length: 135mm

• Strut Length: 235mm

• Outer Diameter: 36mm

• Rotation / Eyelet Angle: 30° (specific to M–XL Supercaliber frames)

• Spacer: 0.1mm

• Remote Type: Remote PTL (Push-to-Lock)

• Adjustment Type: Remote-operated compression with rebound adjust

• Color: Black / Performance Series Finish

• Intended Use: Cross-country (XC) / Marathon

• E-Bike Compatibility: Yes (E-Caliber only)

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Performance Series Details:

• Performance-level damping system provides smooth, controlled suspension ideal for race and endurance XC setups.

• Black anodized finish with laser-etched graphics for durability and clean aesthetics.

• Features lightweight aluminum construction with advanced Fox seals for minimal friction and long-term reliability.

• Compatible with Fox remote lockout levers (sold separately).

• Factory-tuned by Trek and Fox for Supercaliber’s IsoStrut system, delivering a blend of rear compliance and efficiency unique to this platform.

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Important Usage Notes:

• Designed exclusively for Trek Supercaliber & E-Caliber Gen 1 frames (sizes M–XL).

• Not compatible with Gen 2 Supercaliber frames.

• Installation and service should be performed by a qualified Trek or Fox technician due to the proprietary design.

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Riding Impressions:

The Fox IsoStrut Performance Series shock offers efficient and controlled performance for the Supercaliber’s unique integrated suspension system. With its 30° eyelet rotation and precise damping, it maintains exceptional traction and power transfer while keeping weight low—ideal for XC racers and high-performance riders.

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Disclosure:

This listing is for a genuine Fox Performance Series IsoStrut rear shock (235x32.5mm), designed for Trek Supercaliber & E-Caliber Gen 1 (M–XL).
Example serial number provided; actual unit may vary.
Retail packaged with full Fox manufacturer warranty when installed by an authorized Trek or Fox service center.