90s Trek 26″ mountain bike to gravel style conversion


From humble beginnings in 1976 Trek started crafting high performance steel touring frames in a rented in Waterloo, Wisconsin, USA. Now Trek is a global brand that produces quality bikes seen on the international stage. The Trek 850 Mountain Track was released in their Sport Range in the mid 90’s. Known for the durable construction and road tested geometry with high quality components that provide consistent performance and value for entry level road riders.

Rebuilding the Mountain Track 850

This bike has been fully rebuilt and customised to a 1×7 drivetrain with brifters & ergonomic drop bars to be a comfortable and responsive bike to attack the tour de pub, off road trails or the road less taken. This bike is definitely a head turner and built for those with a sense of adventure and style.

Some specs:

  • Frame Size: 50cm (Medium/Large) 76cm stand over
  • Speed: 1 x 7
  • Trek Cro-moly (OS) main tubes
  • Trek Cro-moly stays
  • Cro-moly fork

New parts we installed:

  • Schwalbe ‘Billy Bonkers’ tires
  • Brake Cables + housing
  • Gear Cables + housing
  • Tubes
  • Brake Pads
  • Saddle
  • Brifters
  • Pedals
  • Chain
  • Crankset
  • Chain Ring
  • Stem Converter
  • Bottom Bracket


  • MicroNew Brifters
  • Shimano Exage 400 LX Rear Derailleur
  • Schwalbe Billy Bonkers 26×2.10 MTB/Gravel tires
  • Trek/ Bontrager Ergonomic Alu drop bars (42cm wide – 6061-T6 Alu)
  • Shimano Acera-X M-System
  • Crankset with 36t narrow wide chainring
  • Shimano HG50 11-28 teeth Cassette
  • 26″ Araya GP-710 alloy rims w/ Shimano Acera-X Parallax hubs
  • Selle Royal Vivo Athletic gel saddle
  • VP flat Pedals
  • Stem E 75mm + 10*
  • YBN  chain
  • YPK Brake Pads
  • Sunrace Bottom Bracket