Tandem Geometry

Calfee Tandem Road Frame Geometry

Tetra Tandem Blue Coupled4

 

Captain Stoker
Sizes Seat Tube Top Tube Seat Angle Stand- over Ht. Front Center Head Tube Length BB Drop Seat Tube Stand- over Ht. Seat Angle Top Tube/Boom Tube
Small/Small 50 53 74 75.9 57.5* 10 7 46 70.5 74 72.3
Medium/Small 54 55.1 74 78.7 59.7* 12 7 46 73.4 74 72.3
Large/Small 58 56.7 73 81.8 60.4 16 7 46 74.4 74 71.4/72.3
Large/Medium 58 57 73 82.2 60.7 16 7 54 78.0 73 73.6
XLarge/Small 62 60 73 83 63.6 18 7 48 75.1 74 71.4/72.3
XL/Medium 62 60 73 83.1 63.6 18 7 54 78.5 73 73.6

*These sizes may have toe overlap, depending on shoe size and crank arm length.When comparing our frames with your current frame, use the stand over height and top tube length for comparison.

Calfee Tandem Off-Road Plus Frame Geometry
Front Suspension

Captain Stoker
Sizes Seat Tube Top Tube Seat Angle Stand- over Ht. Front Center Head Tube Length Seat Tube Stand- over Ht. Seat Angle Top Tube
Small/Small 45 58.4 73.5 79.5 66.8 10 40 69.0 73.5 72.3
Medium/Small 48 60.5 73.5 81.5 68.5 10 40 70.5 73.5 72.3
Large/Small 51 63.5 73 83.5 70.6 12 40 71.8 73.5 71.7
Large/Medium 51 63.5 73 83.5 70.6 12 43 73.3 73.5 71.7
XLarge/Medium 54 66 73 86.3 70.6 15 43 74.5 73.5 71.7

All frames have 33cm (13″) bottom bracket ht, 44cm chainstays
with wheel/tire size of this chart: 27.5″x3″ wheel/tire size. Bottom bracket and standover will be slightly raised with 29″ tires.

(Scroll down for more frame options)

Calfee Tandem Off-Road Frame Geometry
Front Suspension

Captain Stoker
Sizes Seat Tube Top Tube Seat Angle Stand- over Ht. Front Center Head Tube Length Seat Tube Stand- over Ht. Seat Angle Top Tube
Small/Small 45 58.4 73.5 78.1 66.8 12 40 69.7 73.5 72.3
Medium/Small 48 60.5 73.5 80.5 68.5 12 40 71.2 73.5 72.3
Large/Small 51 63.5 73 84.2 70.6 15 40 72.7 73.5 71.7
Large/Medium 51 63.5 73 84.2 70.6 15 43 74.2 73.5 71.7
XLarge/Medium 54 66 73 87.5 72.6 18 43 75.7 73.5 71.7

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.

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Calfee Design 1-800-965-2171