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black, yellow,
S, M, L,
2,30 kg,


The Sour 27.5+ Frame from Octane One is the ultimate in hardcore hardtail trail riding performance. It's recommended for use with 140mm fork travel, large plus-sized tyres and features a post mount for use with disc brakes. The ideal frame to use as the foundation for your next off-road trail riding fun machine, the Sour 27.5+ frame provides an agile, versatile and durable performance that's also compatible with modern components.

The Sour 27.5+ combines modern enduro inspired frame design that's compatible with Plus-sized tyres, giving hardcore trail riding performance. It features a tough and lightweight alloy frame, long and slack geometry and is dropper seatpost compatible. Plus, it's suited to off-piste all mountain explorations, smashing berms at the bike park and hitting jumps anywhere with style. If you're wanting to ride your favourite trails harder and faster - the Sour is for you.


  • Material: Custom formed and butted 6061 Aluminium frame
  • Recommended Fork Travel: 140mm
  • Headset Standard: Tapered 1 1/8" - 1.5" IS42/IS52
  • Brake Mount: Post Mount Disc
  • Bottom Bracket: BSA Threaded
  • Tyre Clearance: 27.5 x 2.8"
  • Rear Dropouts: 12 x 148mm Boost

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