Apollo Radius manual Updated 23/05/07 RAOM0507

Models: Radius

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Unlike the single speed freewheel bike, coaster hub brake or 3-speed hub bicycle the chains on derailleur geared bicycles are automatically tensioned by the rear derailleur. Consequently, manual adjustment of the chain is not necessary on derailleur geared bicycles. The process for removing and replacing chains or altering the length of the chain on a derailleur geared bicycle, also differs from that used on the other bike types. The chains on derailleur geared bicycles are narrower, meaning a special tool is needed to complete any of the procedures.

To remove a chain on a derailleur geared bicycle:

- Fit the rivet tool so that the punch pin is centred over any one of the chain rivets.

- Push the rivet almost all the way out, then back out the punch and remove the tool.

- Holding the chain on both sides of the punched rivet, bend it slightly to release the link from the rivet.

Chain Rivet Tool

To install a chain on a derailleur geared bicycle:

-Thread the chain around the chainwheel, rear sprocket and derailleur cage with the rivet facing away from the bicycle.

-Bring the two ends together within the special tool and punch the rivet into place. Take care not to push rivet too far through the side plate. Derailleur geared bicycles can now be fitted with some new types of chains that do not require special tools to remove or replace. Instead, a new, special, disposable connecting link is used every time you disassemble the chain. For further details on these particular chains, including installation guidelines, refer to the manufacturer’s specific instructions.

Freewheel

Inspection and Lubrication

To prevent premature wear, the freewheel must be kept clean and well lubricated. Any accumulated dirt should be brushed from the freewheel and the component cleaned with kerosene or degreaser. Lubricate the freewheel whenever the chain is oiled. Any excess oil should be removed.

To ensure the freewheel is operating appropriately, remove the chain from the freewheel and spin it with your hand. If a grinding noise is audible or if the freewheel suddenly stops after spinning it, adjustment or replacement may be required. Such tasks are best referred to your professional bicycle mechanic, as they are quite complex and require special tools.

Note: Generally, whenever the chain needs to be replaced the freewheel should also be changed.

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Updated 23/05/07

RAOM0507

Apollo Bicycle Company Pty. Ltd. ABN: 60 001 914 469

Page 59
Image 59
Apollo Radius manual Updated 23/05/07 RAOM0507