The OB1
The Thesis OB1 is a carbon all-road gravel bike made for perfect asphalt to rocky trails and everything in between. It's fast, versatile, brilliantly equipped, and built to last.
Combine that with our factory-direct pricing, and you’ll understand why it’s been called “unbeatable”.
| The OB1 | The OB1 AXS 1x | The OB1 AXS 2x | |
| Starting Price | $3,299 | $4,999 | $5,199 |
| The Gist | Our legendary original OB1, with 1x11 mechanical shifting. | The best of the original OB1, with 1x12 electronic shifting. | The best of the original OB1, with 2x12 electronic shifting. |
| Wheels |
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| Dropper Post (+$149) | Slickly actuated by front shifter | Actuated by separate lever under left hood | Actuated by separate lever under left hood |
| Shifters & Brakes | SRAM Rival 22 Hydraulic | SRAM Force AXS HRD Electronic/Hydraulic | SRAM Force AXS HRD Electronic/Hydraulic |
| Rear Derailleur | SRAM Rival 1 Long Cage Clutched | SRAM X01 AXS Eagle 12spd Electronic | SRAM Force AXS 12spd Electronic |
| Front Derailleur | -- | -- | SRAM Force eTap AXS Electronic |
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| Chainring |
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| Chain | SRAM PC1110 with quick link | SRAM GX Eagle with quick link | SRAM Force AXS with quick link |
| Rotors | SRAM Centerline Centerlock 160mm | SRAM Centerline XR Centerlock 160mm | SRAM Centerline XR Centerlock 160mm |
| Crank |
Thesis Hollow-Forged AL:
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SRAM Force Carbon:
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SRAM Force Carbon:
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Questions? Don't hesitate to reach out.
Have a question on fit? Need help choosing the right build kit or configuration for how you ride? Let us help. We'll treat you like a friend and help you find the best bike for your needs, regardless of who makes it.
To get started, drop us a note at hello@thesis.bike.
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