BMC Fourstroke AMP LT THREE 2024
Product Details
The BMC Fourstroke AMP LT THREE 2024 is built on a full carbon frame with BMC’s refined APS dual-link suspension system, delivering 120mm of active, balanced travel that smooths out technical terrain without sacrificing speed. Whether you're grinding up steep climbs or flowing through fast descents, the Fourstroke AMP LT THREE delivers a progressive ride feel with maximum traction and control.
Powering your ride is the TQ-HPR50 drive unit, a compact, ultra-quiet motor system that offers natural-feeling pedal assist without compromising weight or handling. Fully integrated within the sleek carbon chassis, it’s virtually invisible, giving you the performance edge without the bulk.
The geometry is tuned for aggressive XC riding, featuring a 66.5° head angle and extended front end for confident handling on the most challenging trails. Thoughtful frame details like dual bottle mounts, an integrated fork stopper, and robust frame protection ensure the bike is built for long days and rowdy terrain.
Built to perform, the spec includes a RockShox SID 3P fork and SIDLuxe Select+ 3P rear shock for consistent suspension response, a dependable SRAM NX Eagle drivetrain, and a wide 30mm Alex wheelset for added traction and stability.
Whether you’re chasing KOMs, technical climbs, or flowy descents, the Fourstroke AMP LT THREE delivers power, precision, and performance, amplifying every aspect of your ride.
Key Features
- Full Carbon Frame – Progressive geometry with dual bottle mounts, integrated frame protection, and trail-ready design.
- TQ-HPR50 Drive System – Lightweight, compact pedal assist motor for a natural, quiet boost on any climb.
- 120mm APS Suspension – Refined dual-link platform for efficient pedaling and controlled traction across technical terrain.
- Race-Ready Suspension – RockShox SID 3P fork and SIDLuxe Select+ 3P shock tuned for XC speed and control.
- Trail-Tough Spec – SRAM NX Eagle drivetrain and wide 30mm internal Alex wheels for dependable all-terrain performance.
| Specification | Detail |
|---|---|
| Frame | Fourstroke LT AMP Carbon | APS Suspension System | 120mm Travel | Integrated Battery | Fully Guided Internal Cable Routing | Post Mount Disc | 12 x 148mm Boost Thru-Axle |
| Front Suspension | Rockshox SID 3P | 120mm Travel |
| Rear Suspension | RockShox SIDLUXE Select+ 3P |
| Drive Unit | TQ-HPR50 Drive Unit |
| Battery Pack | TQ Battery | 360 Wh | Certified by UL LLC |
| Display | TQ Display | 2" O-LED | Bluetooth / ANT+ |
| Drive Unit Control | TQ Remote |
| Charger | TQ-HPR50 4A Charger |
| Stem | Truvativ Atmos 6K |
| Handlebar | BMC MRB 03 Riser Bar | 760mm |
| Seatpost | BMC MSP 03 | 31.6mm | 0mm Offset |
| Saddle | Fizik Antares R5 |
| Crankset | Praxis Alloy eCrank | SRAM X Sync |
| Chainrings | 34T |
| Cassette | SRAM NX PG-1230 Eagle |
| Cassette Size | 11-50T |
| Chain | SRAM NX Eagle |
| Rear Derailleur | SRAM NX Eagle |
| Shifters | SRAM NX Eagle |
| Gears | 1 x 12 |
| Brake Levers / Calipers | SRAM G2 R |
| Rotors | SRAM Centerline | 6-Bolt |
| Rotor Size (F/R) | 180 / 180mm |
| Rims | Alex MD30 | 30mm Inner Width |
| Hubs (F/R) | DC-711 (F) | DC-3248 (R) |
| Tires | Maxxis Rekon 2.4" | EXO TR |
| Tubeless Information | Tubeless Ready Rims | Tubetype Tires |
| Tire Clearance | 60mm |
| Weight without Pedals | 16.90 kg | Size M |
| ASTM Classification | Level 3 |
| System Weight Limit | 110kg |
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider Height | <172 | 172–182 | 180–188 | >188 |
| Reach | 437 | 457 | 476 | 496 |
| Stack | 594 | 605 | 615 | 627 |
| Bar Rise | 15 | 15 | 15 | 15 |
| Bar Sweep | 9° | 9° | 9° | 9° |
| Bar Width | 760 | 760 | 760 | 760 |
| BB Drop | 40 | 40 | 40 | 40 |
| Crank Length | 165 | 170 | 170 | 170 |
| Fork Length | 531 | 531 | 531 | 531 |
| Fork Rake | 44 | 44 | 44 | 44 |
| Front Center | 725 | 751 | 775 | 800 |
| Head Tube | 90 | 102 | 113 | 125 |
| Head Tube Angle | 66.5° | 66.5° | 66.5° | 66.5° |
| Rear Center | 435 | 435 | 435 | 435 |
| Seat Angle | 77° | 77° | 77° | 77° |
| Seat Tube | 420 | 430 | 470 | 490 |
| Seatpost Length | 350 | 400 | 400 | 400 |
| Seatpost Offset | 0 | 0 | 0 | 0 |
| Standover Height | 730 | 730 | 730 | 730 |
| Stem Angle | ±6° | ±6° | ±6° | ±6° |
| Stem Length | 40 | 50 | 50 | 60 |
| Top Tube | 574 | 597 | 620 | 644 |
| Trail | 115 | 115 | 115 | 115 |
| Wheelbase | 1157 | 1178 | 1202 | 1227 |