Tuesday 21 February 2012

Back on The Chain Gang












Receding weather fronts have permitted enthused riding/equipment testing, timely then that I should receive a helmet camera. I’ve always been taken by the breed from a documentary perspective but never had chance to play with one beyond the confines of a trade show counter. Size and weight have become increasingly immaterial- this little Easy Shot Clip HD is smaller than a micro multi-tool and comes complete with its own waterproof housing reminiscent of a diving bell. Riders using helmet cams have found themselves increasingly vilified by motoring groups and subject to more physical forms of attack/abuse from some vehicle operatives, so discrete dimensions will hopefully keep such confrontation to an absolute minimum. By the same token, small sensor sizes cannot capture the same degree of detail as larger models- an eight- megapixel camera phone will not produce the same quality images as a comparably endowed compact camera. More comprehensive testing in varying conditions and context will give a fairer reflection of its true capabilities and limitations…


Having run the otherwise fabulous Squirt chain wax for around 2,400 miles, the tell-tale metal on metal symphony chimed time so after giving the cassette a thorough comb-through to remove any residual sludge, I applied some of this Muc Off C3 ceramic lube. Ceramic blends have become extremely fashionable thanks to baron nitride and similar ingredients that are associated with longevity/corrosion resistance. Muc-off are very coy about the true composition, advising it’s a trade secret (think Coca-Cola) but it does seem slightly different to other leading brands’ and only requires a single, rather than two-stage application in the first instance.

That said, the instructions still recommend a four hour curing period so for most of us, this means applying the night before-a technique that comes as second nature coming from dry formulas but then wet lubes are ready to go straight from the spout. That aside, for it to impress, I need to return at least 220 winter miles from each application-a consistent average using another leading brew and for now I’m going to leave you guessing as to its identity. It seems equally fashionable-or lazy marketing on the manufacturers’ part to recommend their use on control cables but in my experience this works for a very short period, whereupon the brew solidifies, demanding solvent/water displacer bypass surgery.

There’s another school of thought suggesting that all bicycle lubes are over-priced-at least relative to those developed for motorcycle chains. Liked the idea of the Scott-oiler, especially in a cyclo cross/mtb context, although never got round to trying one but experimented with the O-ring chain lubes- Rock oil in particular. While the anti-fling properties were arguably way in excess of those required for a bicycle transmission turning at 100rpm, the consistency a little gloopy and prone to decorating the chainstays, a little went a very long way on fixed and cross country mountain bikes subjected to the ravages of winter. Other experimentation (of the legal and morally righteous kind) involved semi/synthetic two-stroke oils- Husqvarna chain saw type proving surprisingly useful (albeit relatively expensive) without attracting too much dirt or washing away in the first big puddle.

Sticking with old school for a minute, this post war tandem frameset (c.1952) arrived at the spray-shop in need of some serious TLC. A double diamond design, its once proud gold livery and decals have been somewhat consumed under a blizzard of corrosion. It’s worth remembering that in the inter/early post war years, the tandem was very much a utilitarian vehicle and everyday examples were made from heavier, plan gauge tubing which was not only cheaper but better equipped to shrug off dents and similar accidental damage. This goes a long way to explaining why this example has survived half a century or so. I’ve often toyed with a sleek utility build employing an eight-speed (Sachs Pentasport or Shimano Alfine) hub transmission hung on a bespoke, fillet brazed Columbus tubeset with every conceivable braze on- dynamo, disc mounts, bottles, cable guides etc, etc finished in battleship/dove grey (devoid of decals, save perhaps for my name). This was initially conceived twelve years or so back when drop bars were also unfashionable-at least to the light fingered but presented all manner of problems when it came to mounting the shift mechanism. Since frame and fork alone were nudging £700, experimental bodges were out of the question.






At the other end of the spectrum we have lightweight hybrids (Sometimes called North American Commuters) based around 6061 aluminium frames and occasionally carbon forks. Sensible clearances allow 700x35/38c tyres with breathing space while carriers, mudguards etc all slot neatly aboard their dedicated mounts. Hub transmissions and linear pull (sometimes disc) brakes ensure everything stops, goes and handles in reasonable proportion. However, while this level of trouser friendly enclosure makes for a long and happy union, I'd be inclined toward kevlar belted rubber, thorn-resistant tubes and a stout lock...

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