e*spec Direct Mount Chainrings use e*thirteen's M3 narrow-wide tooth profile, which reduces weight without sacrificing chain-retention. These lightweight and well-designed chainrings are adapted to work with Brose S Mag eBike motor configurations.
53mm Boost chainline
7050 Aluminum
The M3 dual width tooth profile eliminates chain noise, and decreases overall system wear
Specifications & Identifiers
Designed for ebike
Yes
Direct Mount Type
Direct Mount Brose
Intended Use
E-Bike
Material
Aluminum
Round or Oval
Round
Special Features
Narrow-Wide Tooth Profile
Tooth Count
34t, 36t, 38t
Black - 36 UPC
048646005744
Black - 36 MPN
CR4UPA-104
Black - 38 UPC
048646007489
Black - 38 MPN
CR4UPA-105
Tree Fort ID:
333222443580
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