A few weeks ago a friend put up for sale a Gary Fisher he had just finished restoring. The bike looked amazing, with high-end parts everywhere, but I couldn’t afford it the way it was built. Besides, I already had some good components sitting around. So we made a deal: he sold me just the frame and the wheelset, and that’s how this project started.
A bit of history
Gary Fisher is one of the big names in MTB history. His bikes set trends since the 80s, and the Marlin line was always in the middle of the catalog: above the recreational models (Wahoo, Tassajara) and right below the Hoo Koo E Koo and Big Sur.
This particular frame is aluminum 6061 butted, with the well-known Genesis geometry. Back then it was designed for XC, with 80–100 mm forks and 26” wheels.
The restomod project
I didn’t want to rebuild it stock. The plan was to update it with modern touches, using some of the parts I already had:
- Shimano XT 9-speed drivetrain
- RockShox Reba fork
- Cockpit (bar, stem, grips)
I had to buy the rest:
- Frame: Gary Fisher Marlin GS (2004–2005)
- Wheels: Bontrager Race tubeless ready, with 6-bolt disc hubs
- Tires: Maxxis 26”, set up tubeless
- Brakes: Shimano hydraulic discs
- Seatpost: carbon, light and comfy
The drivetrain is now a 1x9 with a Proceed 11–40 cassette, the wheels are tubeless, and braking is reliable with modern hydraulics.
The result: a bike that weighs around 12 kg, light, responsive, and fully rideable in 2025.
Old vs new
If I compare it with a Trek Marlin 7 (2025), the differences are funny:
- The new Trek is more stable, has a wider range (1x10 with 11–46), but it’s also heavier.
- The Gary Fisher is quicker, lighter, and honestly more fun on twisty trails.
- A 26” bike still feels alive in a way that modern 29ers don’t.
Conclusion
This project proves that a 20-year-old frame can still shine with the right parts.
The Gary Fisher Marlin GS is not just a retro bike anymore; it’s a restomod that blends history and modern performance.
And it’s not just theory: this weekend I did my longest ride so far, 60 km, and the Gary Fisher was the bike I picked for it. It handled it perfectly, and reminded me why I love MTB so much: it doesn’t matter how old the bike is, what matters is how good it feels to ride it.
