Showing posts with label batteries. Show all posts
Showing posts with label batteries. Show all posts

Thursday, 25 October 2018

Master Blasters











We’ve been promised a bitterly cold snap, which has me checking spiked tyres, reg-greasing fixed sprockets, contact points and donning full-length tights. Judging by the forecast, I’ll be dusting down my Lake winter booties, earlier than usual.
Might be an idea to check the central heating oil too, before temperatures plummet and in case tensions worsen, with oil producing nations…
On a cheerier note, Oxford Products have sent me their Ugoe 2000 headlight. Big brother to the 1000 https://www.sevendaycyclist.com/ugoe-1000-lumen-headlight , it packs a total output of, you guessed it- 2000 lumens. Hopefully enough useable light for 30mph for those beloved backroads. Medium is 1000 lumens, ditto flashing but there’s also a more civilised constant, 500lumen. Arguably more than you’d ever need through the concrete jungle, but not abrasive.
Their F100 and R50 lights are continuing to impress, in every respect.
Sensible modes, incredibly frugal run times and overall build are good by any price point. Run times bear close affinity with their cited reality, which is great news for everyone, although attempting to call their bluff is crucial, from a tester’s perspective.
Thus far, I haven’t found any inconsistencies. Lithium polymer cells certainly help but it’s worth remembering, that run times may vary by a few minutes. Looking after cells by keeping them charged and stored properly makes a world of difference.
Phenomenal at this end of the market. Nonetheless, we’ll see what the next few weeks bring before arriving at any definite conclusions.  Staying with the theme of batteries, John Moss https://www.sevendaycyclist.com/love-resurrection-john-moss-s-tandem has some guidance for looking after/upgrading 18650 lithium ion cells. The sort, such as those employed in Moon Meteor Storm Pro https://www.sevendaycyclist.com/moon-meteor-storm-pro-front-light .
He recommends charging them to 4.1 V and recharging once they reach 3.8V. Doing so will extend their useful life-considerably, compared with charging to 4.2 and discharging to 3.6 V. Allowing the cell to discharge further than this, will kill it. I’ve a feeling this My Tiny Sun battery pack met said end.
Tyres are another consideration before winter strikes. There is always some trade-off between performance and dependability, although this gap has been shrinking, in the same fashion as that, between tubular and wired-on (clincher) types.
Personally, durability has my vote, as the nights become darker and the roads, more challenging. There’s a lot to be said for Schwalbe Marathon 365. https://www.sevendaycyclist.com/schwalbe-marathon-gt365-tyre  
They are a bomb-proof, go-anywhere design that will cope with pretty much everything, save for snow. This comes with a palpable weight penalty. The kind folks at Schwalbe have just sent me the 26x2.0 version of their Marathon Mondial Evolution DD.

Though 717g apiece is hardly svelte, its lighter than their 35mm Marathon GT https://www.sevendaycyclist.com/schwalbe-marathon-gt-tyres . According to their blurb, these are an expedition model “The ultimate touring tire, made for road, tracks and trails of all continents”. On paper at least, fitting perfectly with my Univega’s all-terrain, working bike persona.
A 20-mile, mixed terrain blast, suggests swift and yet sure-footed rubber. Looking forward to the next few hundred miles. See how they fare, as the days become shorter and conditions, increasingly wintry.

Tuesday, 22 November 2016

Remaining Conspicuous


 
Been an extremely busy few weeks, testing kit, preparing for winter; talking to Tegan Phillips and being invited to the odd, impromptu photo shoot…Having reached some definite conclusions about Pro-Green MX triple pack  

to this Pro Viz reflect 360 helmet. Despite widespread acceptance, helmets still divide opinion. Though, I almost never ride without one, I fiercely oppose compulsion and that contributory negligence card, so often played in cases where someone has sustained serious injury.   

Like most other bike apparel, purchase power means standards and to some extent, expectations are higher than ever before. Some respected sports chains are offering extremely well finished models for £20. Admittedly, these are made in the Far East, where production costs are lower and savings can be passed to the end consumer.

The reflect 360 is made in Germany, meets the usual CE 1078 and though branded as a road design but the peak and insect net, suggest love child consequence of a passionate tryst between road and trail lid.  

Like many others at this price point, it comes complete with an “intelligent” adjustment system which allows precise alignment and theoretically, improved protection to the skull’s occipital region. 

This works to the same principle as a car roll cage, preventing twisting injuries that can result from bouncing along tarmac. I was a little disappointed to discover the EPS liner exposed around the rim, leaving it vulnerable to knocks and dings but we’ve not crossed into deal-breaker County.

Now to their patented K star technology. This apparently took two years to develop.

Millions of tiny mirrored glass beads are impregnated within the outer shell; then sealed under a lacquer top coat. Theoretically this also serves an amplifier while safeguarding against peeling, or otherwise getting stripped under normal use.

Pro Viz says the depth of illumination is superior to any other helmet on the market. It’s certainly brighter than any I’ve tested to date. Aftermarket helmet retro-reflective neoprene, halo type bands are a cost effective option but even these don’t come close to the K star system. 

Talking of illumination, I’ve reverted to carrying a spare AA blinkey, especially on longer rides. I know run times are generally pretty accurate these days but I’ve had a few unexpected power downs lately. 

I was chancing my arm a bit with the Cat Eye Rapid X (it had been pulsing away for about three weeks without refuelling) but a Lezyne KTV and Moon Comet X both powered down unexpectedly, fifteen murky miles from home.

Thankfully, I’d had the sense to clip Moon Shield X auto onto my jersey pocket. Not that Cat Eye’s rapid micro rear could be considered impotent-it’s a lot brighter than 15 lumens suggest and will hold its own around town. However, by my reckoning, more bite is required for regular rural riding.

Personal favourites include Topeak Redlite mega and the almost iconic ½ watt Smart complete with elastic band type rubber seal. Cheap as chips, this one’s been a faithful standby for several years now. Replacing depleted dry cells promptly and giving contacts a quick lick of Vaseline seems the secret to its long and productive life.

Technically, we’re still in late autumn here in the UK, gusty winds are stripping trees and hedgerows of their, rich auburn leaves, which blow across the wet roads before forming a slippery carpet. We all have our favourite tyres but arguably there is no definitive model, perfect for every condition.

Generally speaking, I’m a horses-for-courses man and I often slip on spiked rubber when the iceman, or indeed maiden cometh. However, daily drivers call for an all rounder.

We’ve been putting a series of rugged commu-touring models through their paces at Seven Day Cyclist and though one of the coarse 28tpi casings succumbed to a nasty cut (sealed with a healthy dollop of high quality superglue), these 1.6 section Vittoria Street Runner are proving surprisingly sprightly, yet dependable four seasons’ budget option.

Having retired the Vittoria Randonneur trail (which amassed phenomenal mileage before finally succumbing to a series of savage and ultimately, irreparable cuts) the street runner have been coping handsomely with tarmac duties. Even along those mulchy lanes at 25mph plus, they’ve never shown hint of turning bandit and I’ve only punctured once-during the first, relatively moderate month’s testing.      

With Christmas just over a month away, most people have no problems buying presents but not everyone’s so good at presentation. Dolly blue creative can help-whether it’s the festive season, birthday, anniversary or similar special occasion. Her site’s under construction but drop me an email if you’re based in the UK and like what you see here.

Back soon, in the meantime, here’s a male Bhangra dance group from Derby...


Saturday, 14 November 2015

Festival of light








So long as bike(s) and rider are properly dressed, weather presents no barrier to serious fun. Autumn has swept in stealthily, its slimy cocktail replacing the rich vibrant auburn colours. Thankfully, it was accompanied by Diwali and a steady trickle of kit designed for this much maligned cluster of months. Talking of which, that sorry looking Specialized Rock Hopper has just been transformed-cream powder coat with fresh decals sealed under 2pac lacquer.

I’ve got a thing for blinkies ever since I acquired my first back in November 1992.
Plug in Integral lithium ion/polymer cells are almost default and while undeniably convenient, not to mention frugal compared with cost of running AA/A, they aren’t perfect for all occasions.

AA/A types remain better options for touring, dusk ‘till dawn night rides and those who don’t clock in at a keyboard. Run times can be 30-60hrs plus in flashing, Ni-Cd rechargeables keep costs to a minimum and disposables are pretty ubiquitous-off-licences, supermarkets, petrol stations usually keep healthy stocks.  This I Zone Curve 2 rear light is a particularly nice, inexpensive example.

Firepower has always been a popular selling point but rather like our humble bar mounted computers, our blinkies are positively bristling with different modes-some retina tickling, others that sip reserves, sequences designed to solicit attention in different contexts the list continues. Lowest common denominator, we only need two modes-steady and flashing and our bikes, a single, fixed gear of 72inches...        

COB (Chips on Board) technology, which enables colonies of tiny diodes to occupy the same space seem quite popular this season. Theoretically this combines optimal output, while preventing diodes and circuitry overheating so they can fulfil their true potential and reach ripe old ages.

High power headlamps are another justly popular choice for navigating dark roads and another technology I embraced with both arms back in the late 1990s. Back then, we were talking in terms of £200 10 and 25 watts and lead acid batteries that induced hernias.

Smart used to offer some nice cheap n’ cheerful versions for commuting- I had the cute-looking twin lamp complete with slightly whippy bracket and a CNC machined 10 watt flood version, which was surprisingly bright but not obviously, not particularly helpful for picking out the detail.

Competition and economies of scale have seen prices crash and with box fresh 1800 lumen grey (unofficial) imports offered on auction sites for as little as £18, its easy to see why they’ve become default, even for road riding.  

However, aside from the potential risks-lower quality chargers and exploding cells being popular discussions on forums; these are often limited to three modes. Full blast; standard (50/60%) both of which is way too much fire power for built up districts.

Better (read more expensive) models allow more progressive stair casing, so you can charge along abandoned backwaters at full pelt but click down to something suitable for city limits when required.

Battery slurpage is slower, so you can play out longer and oncoming traffic doesn’t get dazzled. Something like this Oxford X pro is another option for town and suburban runs, either on its own or as a tempered side-kick to your big gun.

Nicely made from rugged CNC machined aluminium, it’s another “lolly stick” plug in model that fuels up from your USB, or mains adaptor. Top whack is reputedly 300lumens but the lens casts a very pure, focused pool of light, which has coped surprisingly well in short haul semi-rural contexts to around 17mph.

Prodding down for economy is easily achieved, even in gloved hands courtesy of a positive centre-mounted switch but there’s no danger of the dreaded dazzle and other traffic still takes notice at around 200 metres.

Flashing is the lowest setting and if you were purely looking to remain conspicuous, 300-400metres isn’t unrealistic and the centre window allows decent peripheral bleed too, so you should remain firmly on the radar when entering the flow of traffic.       

Short days with low light have been presenting some photographic challenges but considerably more rewarding than the calibre of temporary work being offered. Unfortunately, this is going to remain part of my economic diet while I nurture sapling projects, build brand presence and purchase more equipment.

Several agencies have been in touch, some interested in my journalism specific skill-set, others looking to fill housing roles. Pragmatism is a basic pre-requisite for freelancers and indeed, people generally in a volatile economy.

Therefore biting the hand that offers potential work, let alone feeds you is always foolhardy. Recruitment is sales driven and experience enables one to see through the patter. No shortage of people complimenting me on my versatility but with notable exceptions, this hasn’t been reflected in the assignments offered.


Thankfully the standard of applicants for Seven Day Cyclist has been refreshingly high, although we’re whittling them down to a handful and will interview at our earliest convenience.