R38 Rear Shock for E Ride Pro SR & SS 3.0

Overview

Sirris R38 Rear Shock for E Ride Pro SR & SS 3.0

Big moto performance. Bombproof durability.

The new Sirris R38 shock brings real big-bike suspension technology to compact e-motos, using proven internal architecture shared with the larger R46 platform and an oversized chassis built for serious abuse. While other shocks in this class fade, leak, and fail, this one is engineered to keep charging.

To accommodate the massive shock for smaller bikes, Sirris teamed up with Prickly to develop an R38 specific linkage that extends rear ride height by 25mm. Each bike model is precision-tuned and designed to pair perfectly with Sirris F43 CMX 220mm travel forks with drop clamps. It delivers unmatched balance, traction, and confidence at speed.

A completely new 2SC compression adjust system and massive oil flow deliver true moto-level damping feel, control, and consistency — worlds apart from the mountain bike-based shocks found on most compact e-motos. Tuned specifically for each bike model and designed to pair perfectly with Sirris F43 CMX forks, it delivers unmatched balance, traction, and confidence at speed.

• Massive 16mm induction heat-treated hollow shaft with hard chrome finish — delivering extreme structural strength and huge oil flow through the main piston for true moto-level damping performance
• Oversized seals and bushings maximize durability, oil control, and consistent flow under hard abuse
• Shared R46 high-flow base valve cavity, now updated with the new 2SC compression assembly for maximum adjustability, superior pressure balance, and faster frequency response
• Same R46 reservoir and internal floating piston system, specifically designed around the large 16mm shaft and high oil displacement demands
• Ultra-durable chrome plated, teflon-lined spherical bearings in both the body cap and eyelet — no weak mountain bike-style bushings
• Shared R46 sealing systems, MCU bottom-out bumper, and top-out bumper for long-term durability and controlled impact management
• All-new 2SC two-stage compression system with independent low and high-speed compression adjustment
• New 38mm high-flow powersports-style main piston delivering massive tuning range and responsive damping feel in a more compact package
• New upper body cap engineered for tighter chassis fitment without sacrificing internal oil flow performance
• New lower eyelet design maintains maximum rebound oil flow to the shaft and metering rod while fitting smaller bike platforms

Specifications