Free Standard Shipping
Pedals + straps
About 90% pre-assembled
Freewheel Included
Front & Rear Brakes
Secure payment
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4130 chromoly
Unknown SC-1 Fixed Gear Bike
4130 chromoly steel frame and steel fork, with riser bars, front and rear brakes and a flip-flop rear hub.
- 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
- Secure paymentVisa, Mastercard, PayPal & Apple Pay
Specifications
- Frame
- 4130 chromoly steel
- Fork
- Steel, 30 mm rake
- Freewheel
- Single speed, included
- Handlebars
- Riser bars
- Gearing
- 46T × 17T
Model size range and rider height
| Frame size | Rider height |
|---|---|
| 52 | 156–167 cm |
| 55 | 167–178 cm |
| 59 | 178–190 cm |
| 62 | 190–200 cm |
Full model size range. The sizes you can order are shown on each product.
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More about Unknown SC-1 Fixed Gear Bike
The Unknown SC-1 is an easy way into fixed gear and single speed riding. It pairs a 4130 chromoly steel frame with a steel fork, Unknown riser bars on a 60 mm stem and front and rear brakes, for a straightforward city-bike setup.
The fix/free rear hub carries a 17T fixed cog, and a single-speed freewheel is included for the other side, with a 46T chainring on 165 mm cranks. The SC-1 comes in six colourways. The model range covers frame sizes 52, 55, 59 and 62; the sizes you can order right now are shown on each product page.
Our bicycles arrive approximately 90% pre-assembled, with free pedals and foot straps included. We recommend professional assembly by a qualified bicycle shop.
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