A good choice for replacing a worn or damaged front derailleur on a compatible 3x7- or 3x8-speed mountain bike with a clamp-band fitting.
The FD-TX800-TS3-SET is a 3-speed front derailleur for triple chainrings and 7- or 8-speed rear drivetrains. It uses a top-swing clamp-band design and accepts dual-pull cable routing, so it can suit frames where the front derailleur cable approaches from either direction.
The integrated shifting design is intended to guide the chain cleanly between the three chainrings, while the higher pivot position and shorter link support quick, lighter front shifts. For a compatible drivetrain, it is a sensible replacement when you need dependable cable-actuated shifting without changing the rest of the transmission.
Fit is the key consideration. The derailleur suits a 47.5/50 mm chain line, 63–66° chainstay angle, and a top chainring of 42T or 48T, with 20T total capacity. The set includes adapters for 28.6 mm and 31.8 mm seat tubes alongside the standard 34.9 mm clamp, plus the clamp bolt, cable-fixing hardware and adjustment screws and plate.
3x7/8-speed compatibility
Designed for triple chainrings paired with 7- or 8-speed rear drivetrains using an HG 8/7-speed chain.
Dual-pull cable routing
Supports front cable routing from either the top or bottom, helping match the layout of your existing frame.
Top-swing construction
The higher-positioned pivot and shorter link are designed to support quick, lighter front shifts.
Broad clamp compatibility
The 34.9 mm clamp includes adapters for 31.8 mm and 28.6 mm seat tubes.
Triple-chainring range
Suitable for a 42T or 48T top chainring with 20T total capacity.
Defined drivetrain fit
Designed around a 47.5/50 mm chain line and 63–66° chainstay angle; check these measurements before ordering.
Installation hardware included
The set includes the clamp bolt, cable-fixing bolt unit, stroke-adjustment screws and plate, plus the clamp-band adapters.
General
Compatibility
Materials & construction
Features
What's included
HYPERDRIVE
The integrated HYPERDRIVE design helps the front derailleur guide the chain cleanly between the chainrings, delivering precise and reliable shifting across 3x8-speed drivetrains.
TOP SWING
The higher-positioned moving pivot and shorter link increase rigidity, helping you achieve quicker, lighter front shifts.
