Calfee Tandem Off-Road Frame Geometry
XC Front Suspension

Captain Stoker
Sizes Size Top Tube Seat Angle Stand- over Ht. Front Center Head Tube Length Size Stand- over Ht. Seat Angle Boom Tube
Small/Small 45 58.4 73.5 78.1 66.8 12 40 69.7 73.5 72.5
Medium/Small 48 60.5 73.5 80.5 68.5 12 40 71.2 73.5 72.5
Large/Small 51 63.5 73 84.2 70.6 15 40 72.7 73.5 72.1
Large/Medium 51 63.5 73 84.2 70.6 15 43 74.2 73.5 72.1
XLarge/Medium 54 66 73 87.5 72.6 18 43 75.7 73.5 72.1

All frames have 33cm (13") bottom bracket ht, 43cm (17" chainstays)
Wheel/tire size of this chart: 27.5(650B) wheel size with 2.25" (57mm) tire.

Is this a Complete Bike or Frameset only

Complete BikeFrameset

Captain Height (measured in inches)

Weight(in lbs)

Max Standover (measured in inches)

Stoker Height (measured in inches)


Max Standover (measured in inches)

Off-Road Tandem Frame Model


Frame Size (captain/stoker)

Fork Choice

120mm Travel


none1 Set2 Sets


cableShimano Di2Rohloff

Head Tube

44mm Shell

Head tube extension (zero mean none)

Captain Bottom Bracket

Eccentric(english thread)

Stoker Bottom Bracket

English threadEccentric w/english thread

Wheel Size

27.529 inch Custom(for hardtail only)

Tire Clearance For Hardtail


Rear Wheel Spacing

148mm Thru Axle

Rear Brake Routing

Full Length Disc Brake Routing Only

Internal Disc Brake Housing Routing (not available with couplers) $350


Extra Bottle Mount- Under Stoker TT


Extra Stiffness


Rear Rack Eyelet (Hardtail Option Only) $50


Rear Fender Mount(Hardtail Option Only) $50


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Craig Calfee designed and manufactured his first carbon frame in 1987.