Four Unique Second Spin Mountain Bikes

Yesterday we took a look inside Second Spin Cycles and Martin’s stock of vintage mountain frames and accessories. Today, we’re going to look at four of his bikes in detail, all of which I felt were very unique. I’ve done my best to include Martin’s synopsis for each bike, along with some details which surprised even me. As with everything in this gallery, you can head to Second Spin Cycles’ blog for more information.

1985 Cunningham Indian

1985 Cunningham Indian #10

One of Charlie’s most elegant and sophisticated bikes meant to show off his handy work. At the time it was one of the more expensive bikes he had built due to the fact that everything was hand machined. It’s one of the few smoothed, bondo’d and painted bikes made by Charlie Cunningham. He made nearly every component in some way.

1989 Yeti FRO

1989/90 Yeti FRO

Former race bike of Joey Erwin built as he would have raced it in that timeframe. The frame features custom geometry, lightweight “team” rear dropouts and oversized vent holes in the bottom bracket and head tube cluster where main tubes join to further trim weight. This build features Yeti/Answer Accutrax fork and a custom Yeti steel stem. Components are Campagnolo Euclid which look great but work very poorly, especially the drivetrain.

1990 Bradbury Manitou

1990 Bradbury Manitou

You can see the initial post on this bike at Second Spin, as well as the follow-up.

This 1990 Bradbury Manitou is one of around 312 made. Unlike other bikes in its era, this bike featured 115mm front and 145mm rear spacing. Something we’d come to call “boost” in the modern era. This allowed the wheels to be dishless due to the custom made hubs. It also featured a 90mm BB shell and a 145mm spindle to widen the pedal stance out. The fork is built from 4130 1 1/8″ OD fork blades with a custom Aluminum crown and a custom-machine Manitou stem. Even the angles on this bike are more modern with a 70.5º HT angle, 73º ST angle.

1991 Grove Innovations Hard Core

1991 Grove Innovations Hard Core

You can see the initial post on this bike at Second Spin, as well as the follow-up.

Bill Grove and his Grove Innovations frames are considered sacred ground in the East Coast’s MTB scene. These bikes, despite this one’s low-pro geometry were considered some of the first freeride bikes with their massive, oversized downtube, and beefy construction. If you could break a Hard Core frame, you were… well, you get it. Martin had this one painted by Bill Grove in 2012 and the final build features a Hard Core fork, Hothead cockpit and Hot Rod cranks. The BB height on this beast is super high, even for this era, measuring in at 13.5″, with a 72.5º HT angle and 73º ST angle.

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I hope you enjoyed viewing this gallery as much as I did making it! These four builds only scratch the surface of Martin’s collection and hopefully, we’ll be able to feature more here on the site in the near future. If you’d like to work with Martin, give him a shout and follow Second Spin on Instagram.

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  • Tim Guarente

    Those Grove cranks are siiick! Whats their story? Obviously the King bottom bracket is a “it’ll do” stand in, but is this the factory crank?

    • They were made in house, IIRC.

    • Martin Kozaczek

      The cranks originally came with a proprietary BB but they’re not super reliable a CK makes the bike actually work, so I cheated a bit :)

  • Evan Robinson

    A touch of PA pride seeing some Grove action. The opportunity for pedal strike in State College PA is obscene.

    • Martin Kozaczek

      I grew up there and cut my teeth on the local trails, wish I had a Hard Core back then.

    • AdamBike99

      My ’92 Cannondale “Beast of the East” had a 13.5″ BB height, and it was one scary ride when pointed into a downhill switchback. I’ll live with pedal strike! ;-)

  • PGH_small_adventures

    Those calipers on the Cunningham look amazing, I wonder how effective they are.

  • Ham Sandwich

    son of a bitch bastard. this is probably my favorite album that ive ever seen on theprobablyisnttheprobably.com/bikes.html

    • breed007

      I put on a little Marvin Gaye at lunch and scrolled through it. …Slowly.

      • Angelo Medina

        I put on a The Coneheads album interestingly … specifically the one titled: “14 Year Old High School PC​-​Fascist Hype Lords Rip Off Devo for the
        Sake of Extorting $​$​$ from Helpless Impressionable Midwestern Internet
        Peoplepunks L​.​P​.”

  • Tim

    Bumped into a guy this past summer at the Buffalo Creek trailhead (CO.) who was unloading an original “Bradbury” (pre Manitou, pre pre corp. Manitou) out of his pickup! Still his daily rider!

  • AlexH

    Thanks for posting this and all the VRC stuff that pops up from time to time. I lusted after a lot of this back then but as a poor student could only afford the 737s. It’s great to see awesome restos and I never tire of Yeti desert turquoise.

  • Richard

    John, does that Yeti paint scheme make you want to add neon yellow accents to your Land Cruiser, or what?

  • I really want to ride the Hard Core!!!!

    That Manitou is really a find. Did anyone realize back in the era of that frame that it rode a little better than other bikes with that geometry, or was the expectation of the era just so very different? Interesting!

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