Fixed gear & single speed
Unknown Bass-X Fixed Gear Bike
Hardened 6066-T6 aluminium frame and full 12K carbon fork, with a more relaxed riding position than the LV3. Approx. 8 kg in size 55.
- 2Bikes in stock
- €729From
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- Free Standard ShippingNo minimum order
- Pedals + strapsIncluded with every complete bike
- About 90% pre-assembledFinal assembly before riding
- Freewheel IncludedRide single speed or fixed gear
- Front & Rear BrakesIncluded with every complete bike
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Free Standard Shipping
Pedals + straps
About 90% pre-assembled
Freewheel Included
Front & Rear Brakes
Secure paymentSpecifications
- Frame
- Hardened 6066-T6 aluminium
- Fork
- Full 12K carbon, 30 mm rake
- Weight
- Approx. 8 kg (size 55)
- Freewheel
- 16T, included
- Handlebars
- Compact 420 mm drop bars
- Gearing
- 46T × 17T
Model size range and rider height
| Frame size | Rider height |
|---|---|
| 52 | 160–172 cm |
| 55 | 170–182 cm |
| 58 | 180–192 cm |
Full model size range. The sizes you can order are shown on each product.
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More about Unknown Bass-X Fixed Gear Bike
The Unknown Bass-X is a fixed gear and single speed bike for everyday city riding. Its hardened 6066-T6 aluminium frame gives a more relaxed, upright riding position than the track-focused LV3, and it comes with a full 12K carbon fork with a 30 mm rake, Unknown Compact 420 mm drop bars and front and rear brakes.
The Unknown Mushroom Fix/Free rear hub runs a 17T fixed cog with a 46T chainring, and the included 16T freewheel lets you switch to single speed. The Bass-X weighs approximately 8 kg in size 55 and comes in Black and White, in sizes 52, 55 and 58.
Our bicycles arrive approximately 90% pre-assembled, with free pedals and foot straps included. We recommend professional assembly by a qualified bicycle shop. See the other models in the complete fixed gear bike range.
Questions
Do Unknown bikes include a freewheel?
Yes. Every Unknown complete bike has a flip-flop rear hub and comes with a single-speed freewheel. LV3, Singularity and Bass-X include a 16T freewheel.
How assembled does a bike arrive?
Our bicycles arrive approximately 90% pre-assembled, with free pedals and foot straps included. We recommend professional assembly by a qualified bicycle shop.
Are pedals included?
Yes. Pedals and straps are included with every complete bike.
Where do you ship?
Free standard shipping with no minimum order to every country we currently ship to. Shipping policy