km 11520.8

Performed 60 minutes maintenance on June 4 at mark 11400.2

Replaced back tyre from sunbitten Conti Town & Country to a spare Panaracer Holy Moly (free - kicking around in the spares since 2001)

Replaced back brake shoes with MEC product #4011200 $2.75.

Replaced chain with KMC X8.93 #5006382 $14.50.

Replaced freewheel with Suntour Perfect (free - from spares of 2004). Indexes adequately with Shimano 6 speed shifter.

Previous chain (SRAM PC870) had elongated to the point where it chewed through a couple of freewheel sprockets. That chain was installed at mark 9479 on 08.12.16 or 1921km ago. The corrosion resistance stood up well to salted roads.

Here is a chart of chains that have been hooked up on this SC1800:

Type Date Install KMinstall Date remove KMremove Total KM

OEM KMC 06.01.13 0 07.2.27 3398 3398

KMC Z-51 07.02.27 3398 08.04.25 6330 2932

ShimanoHG50 08.04.25 6330 08.12.16 9479 3149

SRAM PC870 08.12.16 9479 09.06.04 11400 1921

KMC X8.93 09.06.04 11400 ? ? ?

all listed materials were ridden to 1% elongation of original length and had freewheels replaced at same time expect for Shimano HG50.