SuDiBe Tandem Site  

Tandem Survey - Questionnaire

 deutsche Version

The Tandem Survey is closed, please do not fill in the questionnaire anymore!

This form can be filled in by everyone who owns a tandem. Owners of more than one tandem please fill in one questionnaire for each bike. Tandems which are no longer in use may also be described. Triplets, recumbents, semi-recumbents etc. are welcome, too

The questionnaire is divided into three parts: Part 1 covers the basics. You will be asked for the bike model and what it is used for. Part 2 asks for some more tandem-specific data but does not go into too much depth. Part 3 contains a long list of technical details. Please note that it is not mandatory to answer all questions of part 2 and part 3. For all technical questions please describe the current condition of the bike or the last status of a bike you do not ride any more.

User's Manual

  • Radio buttons and selectors allow only one answer.
  • Check boxes allow one ore more than one answers.
  • Text fields can be filled in.
  • If there are given two fields using different units of measurement (e.g. centimeters or inches) decide for one of them.
  • Questions which do not match: please just skip.
  • After filling in the form please submit by pressing the "Submit"-button.
  • The whole questionnaire can be cleared by pressing the refresh button of your browser.
  • If any technical problems occur, please send an e-mail to us.

Tandem Questionnaire, Part 1

The basics. Please answer completely

  • Your name *
  • Your e-mail address *
    * These information is separated from the other data and will not be made public. Your name is used to identify datasets which are to be overwritten by updated or corrected information about the same bike.
  • Member of the mailing list on http://tandem-fahren.de? yes no
  • Member of the mailing list on tandem@hobbes? yes no
  • Member of the mailing list on Double Forte? yes no
  • Manufacturer of your tandem
  • Model
  • How was the bike built up?
  • How many seats has the bike got?
  • Recumbent (one recumbent seat minimum)? yes no
  • Year of purchase
  • Purchased as new bike? yes no
    • If no, year of production
  • If you do not ride this bike anymore...
    • Last year of use
    • Why don't you ride it anymore?
    • How did it end?
  • What did you change right after purchasing the bike?
    Brakes Tires Bars Saddle Pedals Gearing Street gear (lighting, fenders, carrier etc.)
  • Price in DM or in US-$ or in British £
  • What did you change later?
    Brakes Tires Bars Saddles Pedals Gearing Street gear
  • Field(s) of use:
    One day trips Loaded touring Training Racing Child transport Shopping
  • Ride surface Good roads Bad roads Easy cross Heavy cross
  • Stokid addition? yes no
  • What kind of trailer(s) do you use? Luggage trailer Child trailer Trailer bike Other

Tandem Questionnaire, Part 2

The most important tandem-specific data. If you have some more time to spare...

  • Why did you begin tandeming?
  • For how many years have you been riding a tandem now? years
  • Is this your 1st, 2nd, 3rd ... tandem?
  • How many tandems do you own?
  • How many teams ride this tandem regularly?
  • Team weight (captain + stoker) kg or lbs
    (please give the weight of the heaviest team which regularly rides the bike)
  • Mileage during the last 12 months on this tandem miles
  • Total mileage on this tandem miles
  • Maximum speed mph
  • Unusual defects:
    Spoke failure Frame failure Hub axle defect Freewheel/hubshell defect
  • Satisfaction with this tandem after purchase
    Very satisfied Rather satisfied Rather dissatisfied Very dissatisfied
  • Satisfaction with this tandem now or at the last time you rode it
    Very satisfied Rather satisfied Rather dissatisfied Very dissatisfied
  • Would you purchase the same bike again? yes no

  • Actual weight of the tandem kg or lbs
  • Suspension fork? yes no
  • Frame rear suspension? yes no
  • Rear axle spacing mm
  • Wheel diameter "inches"
  • Tire width mm
  • Type of gear shifting
  • Front bar type
  • Rear bar type

Tandem Questionnaire, Part 3

Technical details. You may fill in all, something or nothing.

  • Street gear
    • Lighting? yes no
    • Fenders? yes no
    • Rear carrier? yes no
    • Front Carrier? yes no
    • Front lowrider? yes no
    • Kick stand?

  • Frame and fork
    • Frame type (choose the most similar) explanation of frame types
    • Frame material
    • Frame color
    • Fork material
    • Headset type
    • Headset diameter in inches
    • Seat post diameter mm

    • Wheelbase (H) cm or inches
    • Horizontal top tube length front (C) cm or inches
    • Horizontal top tube length rear (C') cm or inches
    • Front seat tube (center of bottom bracket up to the top) (D) cm or inches
    • Rear seat tube (center of bottom bracket up to the top) (D') cm or inches
    • Front standover (floor to top of the top tube at half of its length) (J) cm or inches
    • Rear standover (floor to top of the top tube at half of its length) (J') cm or inches
    • Front bottom bracket height (floor to the center of the cottom bracket) (G) cm or inches
    • Rear bottom bracket height (floor to the center of the cottom bracket) (G') cm or inches

  • Wheels
    • Did you build up the wheels yourself?
    • Inflating tires at home
    • Checking pressure at home
    • Inflating tires on tour
    • Checking pressure on tour
    • Rear wheel
      • Rim (brand)
      • Hub (brand)
      • Tire (brand)
      • Wheel diameter mm
      • Tire width mm
      • Pressure bar or psi
      • Number of spokes
      • Spoke type
      • Thickness of spokes in the middle section mm
      • Spoke fail how frequently?
      • If spoke failures occurred, where did they occur?
    • Front wheel (please fill in items which differ from the rear wheel)
      • Rim (brand)
      • Hub (brand)
      • Tire (brand)
      • Wheel diameter mm
      • Tire width mm
      • Pressure bar or psi
      • Number of spokes
      • Spoke type
      • Thickness of spokes in the middle section mm
      • Spoke fail how frequently?
      • If spoke failures occurred, where did they occur?

  • Drive train
    • Location of the primary chainring(s)
    • Location of the sync chain
    • Tightening of the sync chain
    • Number of cogs on the rear wheel
    • Number of teeth of the cogs
      • Largest or single:
      • Smallest:
    • Number of chain rings
    • Number of teeth of the primary chainring(s)
      • Largest or single:
      • 2nd:
      • 3rd:
      • 4th:
    • Number of teeth of the sync chainrings
    • Captain's pedals
    • Stoker's pedals
    • Do you own a stokid set? yes no
      • If yes, how often do you use it?
      • Number of teeth of the stokid sync chainrings
      • Location of the stokid chain

  • Brakes
    • Primary front brake
    • Primary rear brake
    • Additional rear brake
    • Additional front brake

  • Sitting
    • Captain's saddle
    • Stokers's saddle
    • Rear shockpost? yes no
      • If yes, brand

  • More comments
   


© D. Bettge; 20.11.2000, last changes: 22.12.2000