Showing posts with label Brazing. Show all posts
Showing posts with label Brazing. Show all posts

Wednesday 1 November 2017

Misty for Me






















Continued teething troubles with the Trelock LS906 bike –I pro suggest the OEM wiring isn’t helping. Sure, it will reach the hub and lamp but that supplied is designed for hub to fork crown drilling.
Dropping by some Coventry bike shops drew a blank, so I’ve acquired a decent length of Bush & Muller, which I’m hoping will sort it once and for all. Either way, this proved the ideal opportunity to see how the SP hub performs with my Exposure revo mk1, since I already had a revo wiring kit waiting in the wings.
The Revo is beautifully made, delivers a really pure, useable arc of light from 5mph and a maximum output of 800lumens. Hands-down the best dynamo lamp I’ve used to date. Good enough for moderate trail action too, although think rough stuff touring, not race-pace cross country mtb antics. If that’s your bag, something like the Sigma Buster 2000 https://www.sevendaycyclist.com/sigma-buster-2000-light  might be a better bet.
Some have criticised Shutter Precision hubs on the basis that servicing and bearing replacement are factory only affairs. However, Ison Distribution, their UK importer can take care of this. Lloyd Townsend also reminded me that factory returns are pretty standard for any modern “Ship in a bottle” dynohub system.
The SP family come with a two-year warrantee, which would cover such eventualities. Nonetheless, the hub shell is joined together in the centre. Accessing the internals demands specialist tooling.
Aside from the clocks going back and another birthday, autumn has gained on us somewhat. Temperatures have tumbled top their seasonal average and the lanes carpeted in a greasy top layer. No such thing as the wrong weather, so long as you’ve got the right kit. Bib tights, gloves, jerseys, jackets and overshoes solve comfort conundrums.
Decent tyres, such as the 35mm Scwalbe Marathon GT provide excellent cornering prowess, puncture protection and grip but iced bovine and equine dung can still induce the odd, unpleasant loss of traction. Something I was reminded of while hustling along at 23mph on Monday morning.
A minor shimmy followed and I turned back to see and indeed document! I’ve also had a very rude reminder regards pad replacement. 30mph along a local 1in7, I applied the fixed’s front stopper.
Lovely smooth action, those Jagwire pro road are really impressive but we’re not scrubbing off any speed… “F**king Aiiiiiiidaaaaaaaa!” Having made it round the final bend in one piece and begun the ascent, I made a mental note to strip, inspect and ultimately, replace the Spyre calliper’s pads. Swap complete and 10minutes enthused testing hence, I can confirm that grabbing a handful has the potential for lifting the rear wheel.  
Whisper it but I’ve also been donning a bit of day glow. The green BBB flexribbon is also surprisingly extrovert in overcast conditions, yet without screaming “winter-bike”. As might be expected, especially given the seemingly perpetual fettling, the dimpled texture is starting to cultivate a slightly grimy patina. Will be interesting to see how well it responds to washing and what the sudsy stuff/elbow grease ratio will be.  
Some riders have an almost pathological dislike of fluorescent kit and at the other extreme, others, including the UK government, are advocating compulsion.
Day-glow and day flash light settings have their merits, within reason. However, a lot of motorcycles and cars, are hard-wired to run side-lights. For a time, this made motorcyclists in particular, more conspicuous. However, as these become ubiquitous, other traffic becomes accustomed and the same myopia returns.
I was hit from behind while sat at the lights, on a borrowed Kawasaki GT750…
The shaft driven tourer was deep red, as were the lights. Dressed like an extra from Mad Max, this and a white helmet did not stop a woman plough her vehicle into me. Thrust into the flow of traffic, I groped desperately for the kill-switch. By now fuel was oozing from a ruptured tank and my leg was trapped beneath…Apparently, the woman, in her 20s claimed she did not see me…
My hunch that parliament is coming under pressure from technology companies who are developing automated “driverless” vehicles. I suspect their sensors are only able to register riders wearing hi-viz…
Farfetched? Well no, not really. Many courier/logistics companies will only hire self-employed drivers, this relieves them of a wider duty of care/responsibility for driver conduct.
This leads me to this week’s title, “Play misty for me”. Aside from the misty, murky mornings, I am being pursued by someone who has developed an extremely unwelcome and slightly unsettling infatuation, which is anything but reciprocal.
I have taken various approaches, subtle and direct, yet ultimately compassionate. I have even insisted she see this as an opportunity to develop herself and address some underlying issues, which have underpinned a set of behaviours for many years.
Other people cannot fix us, the desire to change, possibly heal has to come from within. If contact, electronic, or postal persists, I will resort to a more formal method of restraint. Now on a lighter note, I’ll leave you with some curious frames and some appalling arc.   
 

Thursday 21 April 2016

Oldie but Goodie: Fuquay Transformed













Remember the battle scarred red frame I got so excited about during my last visit to Maldon Shot Blasting & Powder Coating? (http://www.ctc-powder-coating.co.uk/) Well, as I suspected, it was a genuine Greg Fuquay.

Fuquay was an American builder, trained by Serotta cycles, who spent much of the 1990s crafting some very unique road and mtb framesets, before returning to Alabama and his earlier aerospace career. This one features his trademark combination of TIG welded and brazed construction.

Sure, most TIG welded steel framesets, especially production bikes have brazed bottle bosses, cable guides, mudguard eyelets and carrier mounts. Few combine the two structurally.

Speaking of which, the tatty aesthetic was apparently down to extended indoor trainer slavery-hence, sweat induced corrosion/pitting along the top and seat tubes. The dent damaged seat stay was filled with brass and smoothed flat for a modest £18, before passing through the iron-oxide blast cabinet.

Structurally sound, there was little trace of internal corrosion, so threaded areas masked and on with the phosphate base coat. While this baked in their curing oven, Graham heaved a huge box of chrome effect powder across the workshop and fed this into the gun. Several minutes later, the frame emerged ready to receive said electroplate effect.

Graham weaves around the tubes, shrouded in a silvery mist. Within five minutes, he’s done, given a quick visual twice-over with extra powder added around the bottom bracket shell. Then it’s returned to the oven for another round of curing prior to receiving a protective clear coat.

While generally an advocate of protective lacquers, in this instance it tempers the sheen, giving a nickel effect under normal light.  

However, when properly applied, polyester powder coating will trump wet spray finishes like stove enamels and 2pac in the durability stakes. Therefore, clear coat is very much optional. Total cost for his transformation came in at £116.40 including VAT.

As for the the Rosso Red Oscar Simonato Columbus frame; it re-emerged in this extremely fetching metallic blue. Another specialist finish, which brought the price to £110 including VAT-£45 over a standard gloss blue such as my Holdsworth’s-RAL 5024 (assuming no post blast remedial works are necessary).

Right, that’s enough distraction for me. Time I was back at my desk, penning some more adventures for the characters in my series of children’s stories.  


Saturday 4 July 2015

Huzzah!








In swept the heat wave, so Holdsworth emerged from prolonged hibernation for some midsummer fun. Fresh gripper paste on its Tifosi carbon post, Specialized perch further forward, 125psi into the tyres and a quick beeswax furniture polish blow-over later, we hammering along the sweeping back doubles at 25mph plus.

Carbon fork, post, large flange hubs, CNC machined drive sprockets and stout KMC Onyx chain certainly help but despite being 60 years old, those plain gauge 531 tubes still deliver a responsive, rewarding ride.

This intoxicating serenity was rudely interrupted by the sudden and unexpected and almost comedic jettisoning of its newly fitted Altura wedge pack-straight into deep, roadside undergrowth. Closer inspection revealed the sprung Klick fix mechanism had gone the way of elderly underwear elastic and wouldn’t engage convincingly with the resin post mount.

This isn’t a reflection on the otherwise superb bag and said failure would be covered under warrantee. However, in my experience, sprung mechanisms per se (most notably smart heads on pumps and standalone pressure gauges) prove phenomenally reliable, serving us faithfully until they suffer sudden cataclysmic implosion.

Momentary, slightly indigent frustration was swept aside by risky pragmatism.
Resting my beloved fixer against a five bar gate, I slipped mini pump, 15mm wrench, tyre levers and glue-less patches into jersey pockets, hid the stricken tool caddy deeper within the undergrowth and thundered on.

Thankfully the puncture fairy smiled down upon me for the remaining twelve mile loop, though having re-entered the zone where physical exertion unleashes enhanced mental processing, the most convenient method of carrying it home still eluded me.

The light bulb moment struck while descending at 46mph. I decided simply to shove the stricken bag beneath my jersey for the remaining three miles. Admittedly, some folks (including a group of reservist fire fighters) stared in wide wonder at my newly acquired pectoral mass that could almost pass for backstreet breast implants.

Thankfully the shame was only fleeting given I was travelling at 18mph and quickly substituted with my own subversive sniggering...
Back in the bat cave, the most obvious solution appeared in the guise of this B’Twin 700 bottle caddy. Ride essentials ported across and mini pump riding shotgun on the bottle cage, it’s an unobtrusive, cheap as chips solution.    
Obviously, this means I either opt for another SKS cage mount adaptor, which might look a little Lego-like but seem superbly engineered, a hydration pack, or a less convenient Tri type-know there’s one in my bodge box doing nowt.
Talking of frames, the world of traditional frame building continues to contract. Yes, there will always be a market for bespoke steel framesets but small scale craftspeople are either working for specialist brands, designing and building higher end production bikes, or adopting a much broader retail model.
That’s not to say its romantic allure is waning the cycling publics’ consciousness-forums are wilting under the heat of people waxing lyrically about intricate lug work and impeccable brazing (although the former is also a clever way of hiding a multitude of flaws).
Shrewd builders with sufficient space (not to mention; patience) have tapped into this phenomenon, offering week long courses whereby keen enthusiasts can build their own frameset from one of the more user friendly Cro-molys-Reynolds 525 being a deservedly popular choice given the bewildering array of sizes and wall thicknesses.
Presented with such an opportunity, I would be delighted to enrol and hopefully come away, pleased as punch with the fruits of my labour but with no commercial pretensions whatsoever.
Then of course, interest in older frames has also mushroomed with a more generic retro revival encompassing “classic” cars, motorcycles, scooters, not forgetting clothing. During my teens, a classmate and self-appointed fashion guru made an unusually insightful remark. Chinos had just swept back in along with Flat tops and other styles with a 1950s flavour and he commented that fashion had reached the point where it couldn’t progress any further, so was and would continue borrowing from the past.
Frame fit pumps are also starting to gain a niche following too. Ultra efficient models capable of delivering 120psi are still very relevant. I still mourn a ¾ length resin Specialized model that was so cruelly nudged from its bracket and crushed beneath the wheels of an approaching double decker bus although I’ve gotta admit, Co2 cartridges are worth their weight in gold by the roadside.
Right, well you’ll excuse me while I do some forward planning for Seven Day Cyclist (www.sevendaycyclist.co.uk) and continue building my photographic website. Continuous development is crucial in a perpetually changing world, one that seemingly never sleeps.


Monday 24 May 2010

It Just Burst!

My puncture plague continues to the tune of three in one day-spread evenly across the Holdsworth, Teenage Dream and the Univega. The latter was traced to a dodgy valve and there’s obviously a rim-tape or similar issue with the Holdsworth as the Halo Courier rubber is pretty much bullet proof in every respect. This leads me conveniently to the Teenage dream (a spare folding tyre now nestles quietly beside the spare tube in the seat pack). Reliving the summer of ’91, we were bowling along the back roads, carving into corners and generally revelling in the bike’s handling prowess. Sweeping over the bridge and into another bend, our roller-coaster of reminiscence was obliterated by a deafening bang- the tyre roaring from the rim. Two seconds passed before I’d fully comprehended what had taken place. Man and beloved machine remained firmly upright, the spare tube saved the day but the exact cause remains a mystery. Thankfully the supple Vittoria have moulded to shape over the past couple of months, so consequently much simpler to reinstate. Similarly, the very fetching Zefal midi pump breezed 90psi effortlessly inside when the chips were down. Ordinarily, I’d exceed a hundred but we were five miles from Stenninggrad and eager to finish our twenty-mile circuit on a high note. Up on the work stand, I noted a very modest nick in the sidewall-promptly treated to a precautionary lick of superglue. So to happier things. Joshua’s confidence aboard his solo took a giant leap recently when, after a rocky start, he managed to ride unaided at a reasonable pace. Ironically enough the breakthrough was realised in the throws of frustration and self-pity. Unbeknown to him, I’d relinquished my grip of the bars and he was perfectly poised as we continued along the deserted farm track. After an hour’s sustained practice he’s more or less there but the OEM grips are a little fierce on his palms so I’ve ordered some dual density Odi to encourage this newly developed confidence-green might not be textbook coordination with his bike’s black and silver livery but frankly, it’s a little personal touch and moreover, his choice. With pedalling very much on the agenda, the arrival of these MKS Prime Sylvan track has resulted in a swap around. They’re deluxe versions of the Sylvan quietly popular among traditional tourists but increasingly embraced by the uber chic urban fixer/singlespeed fraternity. Prime basically denotes polished internals and better weather seals but slightly arthritic bearings. These benefit enormously from a strip and liberal coating of marine grease. Basically Campagnolo Pista copies, access is via the dust cap using either the dedicated MKS pattern (or Campagnolo) tool.

Undo this and flood with grease-complete dismantling isn’t called for unless you’ve run them through a harsh winter. If all this seems too much hassle, the bearings become smoother of their own accord given a hundred miles or so in any case and the seals keep the nasties out. There’s a choice of three anodised cage colours but the tasteful electric blue blends perfectly with the Holdsworth’s. Mine are topped off with NJS approved mirror polished stainless clips with leather scuff protectors and tan straps for that period feel. Elsewhere, this state of euphoria sees the Univega wearing the magnesium BBB until such time I can decide whether to revert to the SPD (arguably the most practical/sensible option), the Genetic track type or indeed the dual sided commu-tours. The latter are the most obvious choice in many regards-aside from limited cornering prowess…
Returning to chic once more in the form of this jacket from Dhb, a justly popular UK clothing brand that delivers excellent specifications for the money and their Southsea jacket continues this tradition, following others into a practical, stylish genre of technical clothing combining cycling specific performance with sharp styling off the bike. It's the sort of clothing you can wear in a business or social context without feeling remotely out of place-dare I say conspicuous in more civilian settings. Like most of this ilk, it’s made from very sophisticated waterproof polyester with tapered seams, pockets, zip/press-stud (popper) closures and a brushed outer layer. Unlike most, it gives change from £70! At the time of typing, the wow factor hasn’t subsided, nor sufficient miles accumulated to pass comment of any validity but I’ll be back in a few weeks and five hundred miles or so. Elsewhere, this gizmo measuring 4.5cms long and made from a choice of brass/anodised aluminium, the aptly named bullet is an adaptor designed to ride on a key/bag fob ready to convert a presta valve to Schrader. The self- righteous amongst us will crow about never leaving home without their mini or frame-fit inflators and in some cases a CO2 cartridge for good measure. However, it’s a godsend should you flat, slip in the spare tube only to flashback, remembering the pump’s holidaying on the kitchen table. Needless to say mine sits pride of place and ready for action beside the bottle opener. Washing and polishing the Holdsworth has revealed a potential crack around the bottom bracket shell- could be something and nothing so rather than developing paranoia, I’ll make a few enquiries/obtain a few quotes for brazing in a new bottom bracket shell. Obviously we’re talking in terms of a re-spray too and this will be just the moment for some bottle mounts… Preliminary figures are around £60 for installing a new shell, £10 for bottle bosses and from there we need to go the blast and paint route so around £130 all told- half the price of a new replica frameset and considerably less than a bespoke offering of similar quality. Lugged and brazed framesets are the least labour intensive and relatively speaking, cheapest to repair whereas a lot of builders (contrary to urban myth) won’t perform any torch work on TIG welded chassis beyond say fitting/replacing braze-on guides, additional bosses, pump pegs etc which doesn’t bode too well for the Univega’s eventual conversion. Wonder if Paul (Vincent) fancies a challenge?