A chain guide built specifically for Bosch CX Gen4 eBike motors, with the wider 55mm chainline modern Boost and Super Boost eBikes need.

Highlights

  • 2-bolt aluminium backplate, mounts to the motor's own ISCG hardware
  • Adjustable upper slider for easy setup and maintenance
  • Wider offset clears 2-piece eBike chainrings
  • 32–38T chainring capacity
  • 55mm chainline for Boost and Super Boost eBikes

Built around the motor, not bolted on after

e*thirteen's Core e*spec guides are designed motor-first, with a backplate shaped for the Bosch CX Gen4 drive unit rather than adapted from a standard MTB chain guide.

Compatibility & fit

Fits Bosch CX Gen4 eBike motors only, with a 2-bolt aluminium backplate and ISCG mounting hardware included. Suits chainrings from 32T to 38T, 55mm chainline (Boost/Super Boost).

e*thirteen covers this chainguide for 10 years against manufacturing and material defects, with a discounted crash-replacement option available. For warranty support, return the product to Tune Cycles and we'll manage the claim with e*thirteen's Australian distributor. This is in addition to your rights under the Australian Consumer Law — keep your proof of purchase.
  • 2-bolt aluminium backplate for Bosch CX Gen4
  • Adjustable upper slider
  • 32–38T chainring capacity
  • 55mm chainline, Boost/Super Boost
  • ISCG mounting hardware included
Mount2-bolt aluminium backplate, Bosch CX Gen4
Chainring capacity32–38T
Chainline55mm (Boost/Super Boost)
Weight75g
IncludedChainguide, ISCG mounting bolts
SKU DTW-ETG-CG3UPA-102
Barcode # 4711280345946
Brand e*Thirteen