Currie tech IZIP - Page 103

103
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
Onderailleurgearedbicyclestherearderailleurautomaticallytensions
the chain. To adjust the chain on single speed freewheel, coaster hub
brake or internally geared bicycles:
1. Loosentherearaxlenuts(andcoasterbrakearmclipiffitted)
and move the wheel forward to loosen, or backward to tighten, in
the frame.
2. Whencorrectlyadjusted,thechainshouldhaveapproximately
10mm(3/8")ofverticalmovementwhencheckedinthecenter
between the chainwheel and rear sprocket. Center the wheel
in the frame and re-tighten the axle nuts after any adjustment.
Bicycles which have a single speed freewheel, coaster hub
brakeor3-speedhub,generallyuseawidertypechainthan
derailleur geared bicycles. These chains can be disconnected by
wayofaspecialU-shapejoininglink,thatcanbepriedoffofthe
master link with a screwdriver. To replace, feed the chain around
the chainwheel and rear sprocket, fit the master link into the
rollers into each end of the chain, position the master link side
plate,andslipontheU-shapedsnap-onplate.Makesurethe
openendoftheU-shapedplateistrailingasthelinkapproaches
the chainwheel when pedaling forward.
Derailleurgearedbicyclesusenarrowerchainsandrequirea
special tool to fit and remove chain links, or to change the length. To
remove, fit the rivet tool so that the punch pin is centered 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 link from the rivet. To install,
feed chain around chainwheel, rear sprocket and derailleur cage with
rivet facing away from the bicycle. Bring the two ends together within
the special tool and punch the rivet into place. Be sure not to push rivet
too far through side plate.