Spesifikasi :
| MODEL NAME | FORTRESS XC 77 |
| MODEL CATEGORY | HARD TAIL - SHIMANO ACERA 24 SPEED |
| FRAME | ALLOY FRAME |
| FORK | SUNTOUR - XCM V3 MLO |
| HANDLE BAR | UNITED - ALLOY |
| STEM | UNITED - ALLOY |
| HEADSET | CH - 919 |
| SADDLE | UNITED |
| SEATPOST | UNITED - ALLOY |
| CRANKSET | SUNTOUR - XCT V2 |
| BOTTOM BRACKET | CARTRIDGE SEALED BEARING |
| CHAIN | KMC - Z82 |
| CASSETTE SPROCKET | SHIMANO - CS-HG31-8 11-34T 8 SP |
| SHIFTING LEVER | SHIMANO - ACERA M310 |
| BRAKE LEVER | SHIMANO - M395 |
| F / DERAILLUER | SHIMANO - ACERA M310 |
| R / DERAILLUER | SHIMANO - ACERA M360 |
| FRONT BRAKE | SHIMANO - M395 HYDRAULIC DISC BRAKE |
| REAR BRAKE | SHIMANO - M395 HYDRAULIC DISC BRAKE |
| PEDAL | ALLOY |
| TIRE | UNITED - 26" X 1.95" |
| RIM | UNITED - ALLOY DOUBLE WALL |
| SPOKES | STAINLESS STEEL |
| FRONT HUB | SHIMANO - M475 |
| REAR HUB | SHIMANO - M475 |
