I headed down to Carbon Bike
Repair in Leatherhead. A fascinating visit that dispelled many of the myths
surrounding composites. Not least, their capacity for successful, permanent and
moreover, cost-effective repair. You can read the full feature here https://www.sevendaycyclist.com/a-visit-to-carbon-fibre-bike-repair
.
I was surprised to learn that
99% of damage is repairable on a good-as-new basis and yes, that includes
dropouts. Obviously, economics are a determining factor.
Basic repair starts at £80,
which is viable on a set of forks blades costing £300. Not so, a set commanding
£100, let alone a £35 seat post with aluminium head.
This TT frameset was involved
in a particularly gruesome collision with a car. One which ultimately claimed
the rider’s arm and broke the frameset into 27 pieces. A bystander had
painstakingly salvaged these, placing them in a bag.
Ultimately, Rob’s team were
able to piece it (including the fork!) back together. Rigorously and meticulously
tested, it is structurally sound, the rider recovered and returned to racing.
Perhaps unsurprisingly, they bought a new frameset and gifted this one to CBR.
Their 2pack paintwork is of phenomenally
high standard too. However, there wasn’t a safe opportunity for me to capture
this being applied, on account of the paints’ cyanide components. Another
reason why manufacturers/refinishers seldom offer little bottles of touch up
paint these days.
Shortly afterward, I headed
north to work on unrelated photographic assignments, which also coincided with
Coventry’s motofest. Oh and a commercial quality TIG welder with AC/DC settings…
TIG (Tungsten Inert Gas) is
another welding technology that came about in the 1940s and a good alternative
to oxyacetylene. It’s also credited with making aluminium and magnesium credible
choices for structural works.
Much greater skill is required
compared with MIG and the Arc’s intensity is also significantly higher; hence a
grade 10 shield/setting and gloves are a must. However, the relatively slow,
precise nature rewards with much cleaner, slag-free welds.
It can be used at any position
and with the correct shielding gas, is highly suited to titanium and Cro-moly
steels. Little wonder how it became so widely used in frame and component
construction.
My involvement? All will be
revealed another time…
Talking of TIG welded frames;
having re-greased the Ilpompino’s headset and seat post, all was buttery smooth
and serene. While hustling along the lanes this morning, my internal processes
were shattered by a high-pitched “baaaaaaaaaaang!” This was swiftly accompanied
by a shimmy; my senses screaming with alarm.
The rear tyre had rolled from
the rim. Closer inspection revealed the tube wall had failed- caused by fatigue,
rather than foreign object. Thankfully, fresh butyl and Lezyne Micro-floor pump
https://www.sevendaycyclist.com/lezyne-micro-floor-pump
spared my blushes.
The latter is capable
of delivering a road credible 100psi fairly swiftly with only moderate, mere
mortal effort. I limped home at 15mph with a wobbly rear hoop. That’ll be a
trip to my friendly, local wheel builder tomorrow morning!
