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Regretfully, we're having to sell our Calfee Tetra (Carbon frame) Tandem with S&S Couplers (includes 2 hard travel cases with padding, and car mounted tandem bike rack). Asking price is $8450. Recently, it was sent to Calfee for a new factory re-paint, and servicing of couplers ($2400 value). It is in excellent shape and perfect working condition. The light-weight, stiff carbon frame makes it ideal for climbing hills and cruising at high speeds. Specifications are listed below.

Specifications

Frame: Calfee Tetra Tandem (Medium)

Drive Train: Shimano Ultegra triple 11-36 cassette with xtr rear derailler, ultegra triple 6703 shifters, Gates belt drive, FSA SLK lite crankset 52-39-28. Profile carbon bars, cobra with carbon wing pro stoker bars. Ritchey seat posts WCS aluminum. Chris King headset.

Brakes: Avid BB7 disc brakes front and rear 203 disc rotors.

Wheels/Tires: Spinergy Wheels with White Industrial hubs. Tires are Continental Grand Prix 4 700C…

We're the Vollers, just joined the club. Looking forward to meeting folks. We're new to tandems, long-time road bicyclists. Riding tandem is our latest little adventure. Purchased a new-old-stock Cannondale RT2 from Any and All Bikes in Englewood last month. Gorgeous bike. Very excited! Working on just the basics - starting, stopping, maneuvering, coordinating, all that... :) Focused practice in our neighborhood at this point, no longer rides just yet. I've (Brian) determined that I have some bad habits from road riding that I'm working on, lol. All good. Lots of questions. Looking forward to connecting with you all.

Age makes it necessary to sell our beloved Erickson tandem travel bike. This was hand-built in 2006 by legendary frame and tandem builder Glenn Erickson in Seattle. It was one of the last tandems that Glenn made (he died in 2024 after a long illness). It is his “Signature” model, which features gorgeous fillet brazed, hand ground steel joints, and premium paint. It has stainless steel S&S couplers for travel and fits into two airline-legal hard cases. Full specs are listed below.

This bike has taken us on many adventures in the US, Canada, New Zealand, and Europe.  Despite its age, it’s ready to take you on many more! Major upgrades over the years include a Wound Up carbon fork, TRP Spyre disk brakes, Rock Shox rear seat post, complete drive train replacement and new wheels in 2020. As with any well-used travel bike it has several cosmetic scrapes and…

We had about 50 members join us for laughs and lunch at Applewood golf course on February 1, 2026. Special thanks to Mary, Dorothy and Carol for making this happen. Here are some photos I took! Add any you took as well!

Welcome to our group Colorado Tandem Club Group! A space for us to connect and share with each other. Start by posting your thoughts, sharing media, or creating a poll.

Selling a Co-Motion Cappuccino tandem, a hand-built steel touring/commuter tandem equipped with a Softride beam suspension seat for extra comfort on long rides. Perfect for couples or riding partners who want a smooth, reliable tandem for road adventures or light touring.

Specs:

• Frame: Co-Motion Cappuccino tandem – 21” captain / 18” stoker (fits ~5’7”–6’0” front rider, ~5’2”–5’6” rear rider)

• Seat: Softride suspension beam for comfort and reduced road vibration

• Drivetrain: Shimano 3x9 (27-speed) – wide gearing for climbs, descents, and cruising

• Wheels/Tires: 700c wheels with Panasonic Panaracer GravelKing 700x32c tires (excellent for road + light gravel)