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ADJUSTING THE CHAIN TENSION
Hummingbird is equipped with horizontal dropouts, where the wheel
can slide forward or backward to change the tension of the chain.
Gradually loosen the rear wheel axle fasteners located on each side of
the rear wheel. Slide the wheel to re-tension the chain, and center the
wheel in the frame. Tighten one fastener and check chain tension.
When grasped in the middle of the chain, run between the front and
rear sprockets, there should be about 12 mm (0.5 inches) total up-
and-down movement. After you are happy with the tension, make
sure both fasteners are tight and wheel is centered in the dropouts.
Please note that an overly tight or loose chain can damage the drive-
train prematurely.
STURMEY ARCHER GEAR ADJUSTMENT
(MULTISPEED HUMMINGBIRD)
If moving the shift control one click repeatedly fails to result in a smooth shift
to the next gear chances are that the mechanism is out of adjustment. Take the
bike to your local bike shop to have it adjusted or refer to the Sturmey user
manual found here:bit.ly/Sturmey
LUBRICATION AND CLEANING
Once a month clean and oil the chain. When lubricating or cleaning
your chain, always place a rag behind the chain to avoid getting oil on
the rest of the bicycle. It is important to use a synthetic chain oil or
something similar. We found that a dry lube such as a paraffin based
product gives the best results. Please refer to the use instructions of
the lubrication product.
We do not recommend cleaning the chain with solvents while on the
bike as they can damage the finish of your Hummingbird.
RECOMMENDED TOOLS
• Torque wrench with lb-in or Nm gradations
• 2, 2,5, 4, 5, 6, 8, 10 mm allen key wrenches
• 15 mm open-ended wrench
• Bicycle tire pump with gauge
• Puncture repair kit
• Tyre levers
***For replacement parts, call us at at +44 (0) 1295 273 355
or email at [email protected]
