Calfee Tetra HT Tandem – Ultimate Build


SKU: TDM-CAL-ULT Category:


Calfee carbon tandem frames are the frames against which all others are measured; the benchmark in comfort, speed, fun, value and beauty.


You no longer have to compromise. Our tandem frames, as light as the very lightest aluminum, titanium and hybrid-carbon frames from our competitors, set a new standard for comfort, durability, beauty, lateral-stiffness and power transmission. We are doing for the tandem world in 2011 what we did for the single world in 1987; building a lighter, stronger, stiffer more absorbent frame that is faster and more fun to ride.

Why carbon fiber? Given carbon’s inherent qualities, why not? Carbon fiber exhibits the most desirable performance characteristics of any of the frame-building materials explored to date. It can be designed to be laterally stiff under heavy pedaling forces and still be light. It can absorb road shocks well, and still handle crisply while efficiently delivering complete power to the drive train. It can be durable and not subject to fatigue failures while remaining strong enough to stand up to unexpected impacts and torsion forces. It can lend itself to attractive finishing and resist corrosion or attack by the elements. And it can be formed in an attractive, functional way allowing it to move through air resistance easily. In summary; a carbon fiber tube bike can be stronger, lighter, stiffer, more fatigue resistant and more comfortable than a steel, aluminum, titanium or hybrid-carbon tubing bicycle. Our tandem frame design leverages the beneficial and intrinsic attributes of the carbon fiber material to manifest the best riding, and looking, tandem bicycles in the world.

Add to this our Ultimate Build Kit, offering a combination of race- provenm, durable and lighweight parts designed for use and abuse off-road.

We’ve out together the ultimate wish-list of seasoned riders and knoweledgeable tandemnistas with our Ultimate Build Kit. Includes upgraded brakes to Magura’s MT7 Next brakes, and Chris King tandem hubset. Add in carbon handlebars and Nox carbon rims, along with some other juicy bits, and you get what we consider the dream tandem setup. Ultimate Build Kit includes the following:

Fork: White Brothers Stoke Tandem fork with QR15 axle

Brakes:  Magura MT7 Next with 203mm rotors and adaptors

Crankset: Middleburn RS8 X-Type Tandem Crankset with Middleburn UNO timing rings

Bottom Brackets:  Middleburn X-Type

FR Derailleur: SRAM XO

RR Derailleur: SRAM XO Long Cage

Shifters: SRAM XO Twist

Cassette: SRAM PG1050 With 40T Expander

Chains: FSA Team Issue 10 speed with quick link

Hubs: Chris King Tandem Disc F&R

Rims: Nox Farlow Carbon

Spokes: Sapim Strong stainless

Bars: FSA Carbon riser / flat

Stems: Thomson X4 / Control Tech Adjustable Stoker Stem

Seatposts: Thomson

Saddles: WTB Speed V / Speed She Progel

Grips: Lizards Skins

Tires: Kenda SB8 SCT


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