Stoker Stems

Control Tech Adjustable Stoker Stem $95

Seatpost clamping diameter 29.8mm or 31.6mm

27.2mm and 28.6mm shims for 29.8mm post are available.

Handlebar Diameter:

26mm (also works with 25.4mm) or 31.8mm (O.S.)

Length:

Long Boom (uncut range 200mm to 255mm)

Minimum stem length (after cutting) 155mm to 210mm

X-Long Boom (uncut 235mm to 320mm)

Click on the thumbnail for full size photo
daVinci Tandems Adjustable Stem


Shim to Fit Stoker Stem to Different Diameter Seatposts

Shim to Fit Different Diameter Handlebars


Custom Length and Angle Stoker Stem – Titanium or Chromoly/Stainless – Add Height, Not Weight

Custom lightweight titanium stoker stem

Stem in photo is Titanium, 210mm, and 45º rise.

Custom stoker stem height comparison

Height Comparison

Save weight and increase height
Up to 45º degree rise (ControlTech is 35º)
The handlebar clamp is offset to increase height and reduce captains saddle interference.
Fits 31.6mm Seatpost and 31.8mm OS handlebars.
Shims for 27.2mm or 29.8mm seatposts above.
Shims for 25.4/26mm or 7/8″/22.2mm handlebars available above.
Custom titanium $490 – Chromoly $400

Call or email to order


Fixed Length Titanium Stoker Stem
Shims to fit different diameter seatposts or handlebars above.

tisstem3up

1/2 the weight of an adjustable stoker stem. 188g for 160mm – $220 (Add $20 for Black)
Click to download full size pdf drawing for sizing. Please print full size.

Available in 160mm, 200mm Lengths
Fits 31.6mm Seatpost and 31.8mm OS handlebars.
Shims for 27.2mm or 29.8mm seatposts above.
Shims for 25.4/26mm or 7/8″/22.2mm handlebars available above.