Burley Tandem Supplement Manual - Página 3

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On tandems with a sloping top tube, you have another reason to buy small. The

sloping top tube increases the effective size of the frame, because the head tube is

higher than the seat lug where the frame size is measured.

The Stoker

Size matters less for the stoker. The stoker has two concerns: seat position and hand

po si tion. Because the stoker can mount and dismount as you would mount and

dismount a horse or motorcycle (while the captain holds the bike upright), straddle

clearance is much less critical. So if need be, the stoker's seat can be low, close to the

top tube. At the other extreme, the stoker's seat can go as high as long seatposts

want to place it. If you are planning to spend a lot of your time off-road, the stoker

should prob a bly have standover clearance ad e quate for an emergency bailout.

The stoker's hand position is determined by the stoker stem and han dle bars.

Assuming that the captain's seat is not bottomed out, it is no problem to move the

handlebars up or down. The adjustable stoker stem offers a number of inches of

fore-aft adjustment for the stoker's handlebars. On a single bike, adjusting an off size

frame in this way would screw up the fore-aft weight distribution and and result in

sub-standard handling. This is not the case on the rear of a tandem. If you can get the

seat-to-crank-spindle distance that ﬁ ts your body, the other factors will fall into place.

III. Starting Up

The Captain

Shift the tandem into a suitably easy gear. Now straddle the top tube. Next, grab the

handlebars, lock both brakes, and place both feet ﬁ rmly on the ground, straddling

the top tube. Keep your legs spread wide, so the pedals can move around between

them. The bike is now held securely in an upright position. Invite the stoker to climb

on board.

The Stoker

The easiest way is for the stoker to stand on one side of the bike and position a foot

on the near pedal. He/she can then use that pedal as a step and gently swing the

other leg over the seat, as if mounting the back of a motorcycle. If the stoker is not

comfortable with this approach have the stoker step over the top tube with one foot

on the ground (as he/she would on a single bike.) Once both feet are clipped in, the

stoker can backpedal to get situated. When the stoker is ready, he/she rotates the left

(or right if you prefer) pedal to the top of the pedal stroke. The captain now clips into

that pedal.

Now it is time to shove off. The captain should stand on the raised pedal to start the

bike rolling. Put the other foot (that is not currently clipped in) on top of the other

pedal and complete a few pedal revolutions to get the tandem rolling. Now the

captain may clip their other foot in.

Burley Tandem Suppplement