Sunday, 26 March 2017

Lighter Moments







Unnerving creaking from my Univega’s post region prompted a swift dismount but turned out to be little more than a loosening cradle bolt. Easily silenced with a lick of grease and nipped tight with a 4mm Allen key. 100miles in and the wonder metals’ unique, subtle zing adds to the machine’s already compliant ride, saving a few grams over a 6061 model too.

Another box of goodies arrived on my doorstep this week, hence, this Bontrager flare R city tail light clings limpet fashion below the increasingly indispensible Cycliq fly 6 https://www.sevendaycyclist.com/cycliq-fly-6-camera-and-rear-light

This little blinkey boasts a total of 35 lumens and has daylight and two night time flashing settings. “Intelligent” systems that automatically kick down once battery reserves plateau is pretty commonplace these days but sensors that adjust the beam’s intensity according to lighting conditions are also becoming mainstream.

For such a small light, visibility is pretty impressive- reckoned to be around the 400 metre mark. 

My own experience suggests this is likely to be on open roads and clear nights. So far, I’ve only been running it during daylight hours but have been pleasantly surprised by its potency. The positive top-mounted switch is easily commanded in full-finger gloves and its dimensions are perfect for pared to the essentials road and TT builds.   

I wouldn’t want to be following at close quarters in the flashing setting, say on a group ride and I generally prefer models with greater surface area for town work but let’s see what the coming weeks and different riding contexts reveal.

Up front comes this Cygolite dash 450, which as its name implies is a compact 450 lumen model, very much of the commuter plus genre i.e. capable of delivering enough bite for semi-rural navigational work on the one hand but with a wide range of town-friendly settings.

Years spent riding trails and back roads in the dead of night have meant a definite leaning towards big guns that belt out 1000 lumens plus. That said I’ve become increasingly partial to these and similarly unobtrusive designs that have enough wallop for those spring/summer evenings when that hour’s blast on the best bike has transitioned into two.

True, most blinkies in flashing modes usually provide enough presence in the seen-by sense and for contingencies but I prefer a proper light, something around the 350lumen mark running alongside in these contexts.  

The Cygolite boasts 7 settings, four night modes and three for daylight, which should cater for most contexts, save for dead of night and quoted run times between 1hr 15 and 70hrs. Build quality is pretty solid throughout at the bracket allows some adjustment, which is a boon when affixing to moustache bars and others, with less useable real-estate. 

This sample has been playing backing singer to my Univega’s Exposure Revo dynamo system, which for my purposes and the machines four seasons’ hell n’ high water design brief is indispensible.

Back to the Cygolite; the rubbery centre mounted switch cum battery life indicator is ideally positioned and easy to use in middle-weight gloves and on the fly. The top row of 4 LEDS has a slightly dated feel on the one hand given the increasing ubiquity of COB technology.

However, the combo works on the basis (one that I happen to subscribe to) that in most riding contexts, drivers tend to notice a pulsing/flashing set up first. Formative impressions are quite favourable when run in overcast daylight.

Experience with this genre suggests these are fine for longer commutes/rides with a mixture of city/suburban and shorter semi rural sections. Again, several weeks in different contexts may reinforce, or refute this opinion...

Staying with lighting, I’ve always been drawn to integrated systems, higher end hub gearing and dynamos in particular, especially for touring and four seasons’ working bikes.

Giant has extended this principle to its Strive helmet. I’ve always been impressed with Giant’s level of specification, not to mention their TCR concept, which arguably normalised semi/compact geometry road bikes back in the late 90s. Look closely and you’ll notice there’s a branded fascia that pops away to reveal a magnetic plate. This is specifically designed with their Numen Plus Link tail light in mind.

The NPL is a four mode, 20lumen model with a quoted 5 hour run time in its lowest setting. It uses COB (Chips on Board) technology, where diodes are mounted directly aboard the circuit board, saving production time and optimising output.
Another neat feature is the auto on/off sensor that works in the same way as a Shimano dynamo switch, reacting to the light levels and automatically turning the light on/off.

20 lumens sounds tame given the lumens race but given it’s positioning, anything more potent is likely to dazzle and alienate approaching traffic. All things being equal and save for really foggy contexts 15-35lumens are sufficiently potent for most conditions and from a generous distance too.
The NPL charges via magnetic USB system, reminiscent of one Blackburn employed on their flea a few years back, although much easier. Connect light to base via the magnets and the plug the USB cable into the mains/PC/Laptop port.  Talking of laptops, time I gave mine some down time and headed out to test some more goodies.      

Sunday, 19 March 2017

Tube Investments









Well, after some false starts caused by an online retailer breaking delicate components in their warehouse; John Moss has worked his magic, on my titanium seat post. 

Clarke lathe correctly calibrated, it took him 60 minutes to remove the excess metal. Residual blemishes were smoothed by hand using increasingly fine grades of emery paper.

In common with similarly skilled engineering trades, John’s background  means he is meticulous in his approach and seeks to continuously improve everything. A philosophy that I share but John’s skill and helpful disposition I greatly admire. https://www.sevendaycyclist.com/love-resurrection-john-moss-s-tandem
 
He expressed quiet disappointment upon hearing of my intention to paint the exposed section. Having clapped eyes on the freshly polished post, I’ve decided to leave it raw.

Coventry was once the UK’s motor city, much like Detroit in the US. Car manufacturing, at least on a mass scale, has long since gone and the economic impact has been quite apparent.While the loss of the factories hit people of all socio-economic groups hard, engineering and technological skills remain in demand. 

Coachbuilders, tool makers, textile engineers and skilled machinists had transferable skills and were able to port themselves over to other, related industries. Any subsequent retraining was minimal and easily recouped either by themselves, or new employers.

I was taught to weld by a Dagenham coachbuilder named Terry and George, a giant tool maker who had worked for many years at the Ford motor company. Dagenham was also another motor town that has suffered greatly since the automotive giant relocated.

Their transition to teaching was arguably an obvious one. I was also interested to learn that the old divides and office politics (between traditional academic and technical) so prevalent in manufacturing; had also been ported over.  

Tuesday morning, having returned from a quick twenty mile blast, restoring my faith in those 30mm Vee tyres (which are starting to win my over in pretty much every context); I decided I may as well introduce the Univega to its new post.

This also presented another opportunity to put Blackburn Switch multi tool through its paces. Sent to Seven Day Cyclist www.sevendaycyclist.com  from Zyrofisher http://www.zyrofisher.co.uk/  the switch is a very minimalist, though equally well conceived 8-function design with some very neat touches.

The wrench is doubled ended, meaning it can be deployed as a T or L shaped Allen key for torque, or alternatively, screwdriver fashion. Ball ends ensure easy access to bottle mounts and similar fasteners. Newbies and those seeking a single, comprehensive tool for several bikes are, in my opinion, better served by the brands’ 19 function wayside http://www.zyrofisher.co.uk/products/detail/BLTWAY19  

Nonetheless, the past fortnight has seen me warming to its charms and we’ll have both reviewed in the coming weeks. Tubby Tourer’s BBB skyscraper post removed, I decided to give the seat tube a top-up shot of waxy corrosion inhibitor.

Next, with the saddle in place, I introduced some PTFE based grease to the post and was delighted by how precisely the post slid into the frame. Teflon based grease! ? but titanium needs a very specific blend...

Yes, I subscribed to this for several years and it’s true that titanium can form a very permanent union with other metals. However, consulting engineers and Justin Burls http://www.burls.co.uk/ , who has built titanium framesets for many years, suggests any good quality synthetic grease is fine with titanium contact points/fasteners.

In keeping with other metals, inspect and replenish this at least annually. More regularly on mountain, cross, or road builds shunning mudguards, mind.         


Friday, 10 March 2017

Rub a Dub Dub My Bike Needs (Another) Good Scrub...











I returned from another water-logged blast and concluded it was time to get busy with the M16 Podium stage system kit. I’d allowed my cross-inspired fixer to become right royally encrusted in a week’s worth of silty gunk.




Wheels out for a deep clean, this was the moment to swap the superb Schwalbe Marathon GT for some much lighter 30mm, 120tpi Vee rubber Rolldiac.Yes, I was very excited and judging by the barking frenzy, so were the neighbour’s miniature Schnauzers. Either that; or they were begging their master to toss them a Marlboro.  


First up,  frame, transmission and contact points received a quick, cold-water rinse over before  I engulfed the bike under a richly deserved helping of that visibly subdued Extreme bike cleaner This was left marinating a few minutes  while I rounded up buckets and brushes, singing that Prince Buster classic “Whine or grine”. 


Afterall, if you have your brush, you can avoid the rush… As per the Univega, impacted grot literally fell away come the first  hint of a saturated sponge. More intimate areas were coaxed clean using the Pedros’ large frame and wheel brush https://www.sevendaycyclist.com/pedros-pro-brush-kit
 

God had decided to take an extended break from washing his two-wheeled fleet on Wednesday afternoon, so I progressed to the Pro Finish #2. This is basically a base coat wax, which will also consume any residual grime-spent chain lube and similar spots missed during the first stage. 


With that buffed; for the grand finale’ I applied their helmet & bike guard, which being completely free of silicone, can apparently be delivered to discs and other braking surfaces.

Calling their bluff, I did just that. 

 Inflated to 125psi (The Rollidac are good for 145, if you must), I reinstated the wheels, adjusted chain tension and gave the links a cursory cat-lick to purge any gritty contaminant. Slightly congealed TF2 extreme clung to rollers, and may last through to April and beyond. By that point, I’ll top up, or strip in favour of something lighter.

 I wasn’t remotely surprised by the pregnant pause as I progressively engaged the Tektro lever while trundling along at 5mph. Lever fully home while riding another hundred metres restored the stoppers original prowess. Therefore, minimise contact and test your brakes a few times before joining the Queen’s highway.



A quick drop of Green Oil slip https://www.sevendaycyclist.com/green-oil-slip-eco-lubricant  to cleat mechanisms and the Thudbuster’s bushings concluded the morning’s fun. I popped said machine and tooling away and returned indoors. 


Talking of green oil, they’ve just launched a kickstarter campaign to get their PTFE free maintenance spray into production. PTFE and its branded derivatives is used in all manner of non-stick applications from industrial lubricants through to cookware. Great for moving parts but particularly toxic to aquatic life and not particularly kind to us either. 


As with exposure to other chemicals, there are supposedly parameters of safety. Delivering a quick, shot of PTFE fortified lube to cables, cleat/derailleur mechanisms, locks etc presents minimal risk to us. 


Similarly, the occasional engine oil and filter change won’t greatly increase a motorcycle or car enthusiast’s risk of contracting serious dermatological condition or cancer. Provided of course, examination gloves and other preventative measures are taken… 


Pro mechanics who regularly ingest PTFE products orally, or through the skin do. We’re really looking forward to getting our hands on the Eco Spray lube. 


So, back to those those curiously named Vee Rubber. These feature a very subtle, dimpled tread reminiscent of a cross tyre that’s been sanded almost pancake flat at 667g per pair, they’re lighter than a single Schwalbe, although still promise optimum grip and longevity. 


The supple casings boast a very thin Aramid belt, which will hopefully deflect the most common invaders, although I’m not expecting the Marathon GT’s almost bullet-proof dependability…I’ve had one epic “Gunshot” blow-out (during our maiden voyage), literally tore the tube wall clean open! Good thing I packed that little Zefal pump too, since my Co2 inflator saw fit to prematurely jettison. We’ll see what the next few hundred miles bring before forming any firm conclusions.      

Lastly a seat post update.  After some problems with an online retailer busting the MT3 live centre component during the pick n’ pack phase, we’ve had a Eureka moment with the ti post project.....More next week. In the meantime, if wet legs on tour, or sullied office smarts are spoiling your commute, these Pro-Viz might be a winner  https://www.sevendaycyclist.com/proviz-nightrider-waterproof-trouse