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.

km 11255.9

Rigs running well despite chain wear at >+1% elongation over original length. This means only about 2000 km from SRAM PC870.

Front brake shoes have approximately 50% of original material left, rear brake shoes at approximately 85% of original material left.

Bearings in hubs, lower hanger and headset in adequate condition.

Tread wear indicators are recommending replacement iminently.

Total overhaul will have to be postponed until budget allows.

km 10779.6

Machine is running well despite noises from rear hub (bearings grinding) and plastic hoop attached to largest sprocket of crankset(recently become bent during lockup and now rubs on front mech).


Chain elongation is at approximately +.85% over original length.


Puncture on April 14th was remedied at side of trail.


Supercycle SC1800 now in garage awaiting 10000km service interval.


Find published pictures including snaps of Bridgestone MB3 after 60km event.

km 10300.6

Rig is running like a top.

Only observations to report are:

March 11: km10107 puncture on back tyre
March 12: km10122 another puncture on back tyre

Replaced inner tube both times for a cost of $5 and 30 minutes service.

km 9815.8

Rig running right after adjusting front brake to reduce squeal in wet conditions. Put a reverse toe on the shoes so they kind of look 'duck footed' when view from rider's POV.

Already well through the first pair of front brake shoes after 50 km through melting snow and rain in 5C temperatures.

Since last post have applied another two coats of SAE20 oil to chain. Still hoping to get 10000km out of front tyre (pictured). One puncture to report, removed small shard of green glass and replaced tube at a cost of $5 plus 10 minutes' work. Kept old tube to be patched down the road.

Above are up to date pictures, including a clearer shot of the replaced brake shoes. Looking back, seems that rear brake shoes (the ones one the right) were installed in September 2006 at km2042 and the front brake shoes were last serviced in February 2008 at km5679. That's 4136km for the front shoes and 7773km for the rear shoes!

km 9636.9

Notes from maintenance since previous post:

December 16 1430 -1500 km 9479

*Replace chain with SRAM PC870 (MEC sku 274337 $26)

*Replace 2 pair brake shoes

Front ones get cartridge system (MEC sku 94078 $7.00 - replacement sku 70310 $2.50)

Back pair same as before (MEC sku79312 $3.75)

Needed to add washers mounting stack to jive with basic V brake arms

*Tape front brake lever with white medical tape

December 30

Puncture!

To get most of OEM treads, put a tough liner inside old tyre.

Used 26x1.5 Vee brand v150 with wire bead removed and inserted a 26x1.5 inner tube into it.

Mounted inside the OEM Kenda Klaw XT to increase lifespan and puncture resistance.

Should be noted test course is mostly covered in ice operating in temps of -20c to 5c.

Find attached photographs of brake shoes in a before and after state. The one with the most wear came from the front.

km 9445.0

Here are some recent photos:













Recent observations since previous post:

Dec 3:
km9345.5
Check air from 50 to 65PSI
Apply 20SAE oil to rollers
Chain wear to .6%
Front brake shoes 10% life remain
Rear brake shoes 30%life remain
Replaced dust caps on crank arms with:
left: 'Norco' - black ; right 'Norco' - silver
Wiped down reflective tape
Noted rear hub bearings loose again

Observations this post:

Product testing ongoing with Planet Bike 'Blaze' handlebar lamp: so far seems sufficiently bright to provide courtesy to other road users, especially when augmented with Planet Bike 'Superflash'. By aiming the beams in the rear view mirror of a vehicle seems to make the operator take notice. Not enough wash for night time off road riding and easy to overrun the spot on unlit bike paths. Helmet mount doesn't work well with Bell 'Metro' helmet without using zip tie modifications. Said helmet mount seems to get along OK with Louis Garneau 'Delta' helmet. Cooked through OEM batteries in about a month, upgraded to Energizer 'Lithium' AAx2 (about $10/pair at Canadian Tyre). Keeping it on blinky mode to maximize battery life.

Rig itself running quite well despite wear to front tyre, braking systems, drivetrain and hub bearings.

Now checking air and oil about once per month. Seems easy enough to remember - beginning of month = maintenance check.

On another note, having trouble finding bulk length red reflective tape at the retail level in the local marketplace. Two retail managers have said their wholesaler is out of business, despite the fact that this product is stipulated as mandatory for vehicles under local legislation. Now going to online marketplace awaiting delivery.