This week on Reader’s Rig, we scope out Nick Karwoski’s 1991 Trek 970 Singletrack, built up for trips around town from mostly repurposed parts. Find more photos and build details here…

Posted by Lucas Winzenburg

My name is Nick Karwoski and I’m originally from Wisconsin but now live in Austin, Texas. I’m a recovered roadie who discovered touring first, then bikepacking. I try to get out on trips as much as my life allows, but end up commuting a lot more than touring.

Nick Karwoski, Vintage Trek 970

I’d been interested in building up a a Trek 970 for a while and recently found a nice 970 XL frame at the right price, so it was time to take the plunge. My bike is a 22” 1991 Trek 970 Singletrack, mostly used for commuting, around town trips, and #coffeoutsideatx.

I salvaged a lot of the parts from a bike Co-op in Austin, used what I had lying around, and bought a few items on eBay. The bars are 1” Nitto Bullmoose attached to a Shimano STX 1 ⅛” headset with an adapter (I’m still alive). The bar tape is Serfas with .12 gauge shotgun shells for bar ends. The brake levers are Shimano Altus. The shifters are SunTour Power Thumb friction shifters. I used a Shimano Deore XT (M730) triple crankset with 9-speed XTR front (M953) and rear derailleurs (M952 Long cage). The wheels are Matrix rims, mystery hubs, a 7-speed cassette, and Compass Rat Trap Pass tires. The brakes are Tektro CR720s. The seatpost is a Velo Orange attached to a Fyxation Pilot saddle. I drilled out the fork crown hole (a tiny bit) to attach a Nitto M12 rack. The bag is a large Fabio’s Chest (the chest is the best!).

  • Nick Karwoski, Vintage Trek 970
  • Nick Karwoski, Vintage Trek 970
  • Nick Karwoski, Vintage Trek 970
  • Frame/Fork 22” 1991 Trek 970 Singletrack
  • Rims Matrix 26″
  • Hubs Unknown, the name has worn off!
  • Tires Compass Rat Trap Pass
  • Handlebar Nitto Bullmoose
  • Crankset Mystery 7 speed cassette
  • Cassette Shimano XT 11-46
  • Derailleur(s) 9-speed SHimano XTR M953 (front) and Shimano M952 long cage (rear)
  • Brakes Tektro CR720
  • Shifter(s) SunTour Power Thumb friction shifters
  • Saddle Fyxation Pilot
  • Front Rack Nitto M12
  • Front Bag(s) Swift Industries / Ultra Romance Fabio’s Chest

This bike really wants to you to stand up and mash on the pedals, just like the bikes you rode as a kid. All in all, this build was relatively inexpensive and fun to put together, and almost everything was reused. You can find it (and me) on #coffeeoutsideatx leisure rides in the ATX area.

You can follow Nick on Instagram at @bicycleexplorersclub.

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