UNKNOWN BASS-X Fixed Gear Bike Aluminum / Carbon
Description UNKNOWN BASS-X Fixed Gear Bike Aluminum / Carbon
The Unknown Bass-X is a versatile urban bike designed for comfort and everyday functionality. Featuring a lightweight 6066-T6 aluminum frame and a full carbon fork, it offers a smooth and responsive ride without the aggressive geometry of high-performance bikes. Its relaxed handling makes it ideal for city commuting while maintaining style and durability. The frame’s comfortable design ensures a smooth and enjoyable experience on urban streets, making it perfect for riders looking for a mix of functionality, comfort, and performance.
The Unknown Bass-X frame is made of high-quality, hardened 6066-T6 aluminum. The fork is carbon (12K) with a 1 1/8” aluminum steerer tube and a 30mm rake. The headset is an integrated SB, 45x45. This fixed-gear bike includes a 90mm stem and Unknown Compact 420mm handlebars. The brake levers are ZST single speed, paired with an Unknown brake set. The crankset is 165mm with a 130BCD. The chainring has 48 teeth, 130BCD, and measures 0.5 x 1.125”. The rear cog has 17 teeth.
The seat post and saddle are both made by Unknown, while the tires are 23c. The seat post measures 27.2mm x 300mm with a 22mm offset. The rims included are Unknown 28-spoke fixed-gear rims. The bottom bracket is 68x103mm, BSA, with a square taper.
For the European market, we opted for a full carbon fork instead of the standard alloy fork. This increases the price slightly but makes a significant difference in performance and comfort, not to mention enhancing the overall look of the bike.
Specifications
- Frame: Unknown Bass-X, 6066 T6
- Fork: Unknown Full Carbon Fork, 30mm rake, 1 1/8"
- Headset: Integrated Unknown, SB, 45x45st., 1 1/8"
- Stem: Unknown 90mm
- Handlebars: Unknown Compact 420mm
- Grips: Unknown Carbon
- Brake levers: ZST single speed
- Brakes: Unknown brake set
- Crankset: Unknown 165mm, 130BCD
- Chainring: Unknown 46T, 130BCD, 1/2"x1/8"
- Chain: KMC Z510 1/2"x1/8"
- Rear cog: 17T
- Rims: Unknown 28-spoke
- Hubs: Unknown Fix 28-spoke, SB (freewheel not included)
- Tires: 23c
- Seatpost: Unknown 27.2mm, 300mm, 20mm offset
- Saddle: Unknown
- Bottom bracket: 68x103mm, BSA, square taper
Size Guide
- 53 cm → 165 cm – 175 cm (5'5" – 5'9")
- 55 cm → 173 cm – 183 cm (5'8" – 6'0")
- 58 cm → 180 cm – 190 cm (5'11" – 6'3")
- 60 cm → 188 cm – 195 cm (6'2" – 6'5")
Unknown Bike Co. is a brand that has established itself as a benchmark in urban and track cycling, offering bicycles that stand out for their minimalist design, robust construction, and focus on performance. Founded with the mission of providing bikes that combine aesthetics and functionality, Unknown has captured the attention of cyclists who value both style and speed.
Unknown Bike Co. adopts a minimalist approach to bicycle design, prioritizing simplicity without sacrificing quality or performance. The frames of their bicycles, often built with lightweight aluminum, are designed to offer stiffness and efficiency, allowing cyclists to maintain precise control and rapid acceleration, whether on the track or city streets.