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TSR (Tall-Short-Ring) 1X chainrings are designed to work with all modern 10/11/12 speed 1X drivetrain systems.
The tall/short tooth profile helps prevent the chain from falling off the ring when riding through rough terrain and is a must on 1x drivetrains but is also compatible with singlespeed drivetrains. Made in the U.S.A. from U.S.A. sourced 7075-T6 aluminum (48 tooth ring is 6061-T6).
Mountain M30 |
Adventure
A30 |
Road
R30 |
Gravel G30 |
|
Crank arm |
M30
Mountain arms |
R30
Road arms |
R30
Road arms |
M30 Mountain arms |
Spindle |
M30
Mountain spindle |
M30
Mountain spindle |
R30
Road spindle |
R30 Road spindle |
1x chainline (3mm offset ring, facing inward) |
49mm | 49mm | 46.5mm |
46.5mm |
1x Boost chainline (flat ring) |
52mm | 52mm | 49.5mm |
49.5mm |
1x chainline (3mm offset flipped outward) |
*55mm | *55mm | 52.5mm |
52.5mm |
2x chainline (between rings) |
47.5mm | 47.5mm | 45mm |
45mm |
*55mm chainline for Rohloff and Super Boost hubs