Showing posts with label commuter tyres. Show all posts
Showing posts with label commuter tyres. Show all posts

Friday, 1 March 2019

Pads, Cassetes, Cables & Chains








Winter can chomp through consumables, at an alarming rate. Pads are no exception and I’d bought replacements, knowing the time was edging closer. Fade struck, along a regularly traversed 1in7. Decision made. Pads stripped and replaced within minutes of returning home.
These patterns lasted a year, or so. Fixed relies less on mechanical braking, thus usefully extending pad and related component life. Provided you’re not living in a particularly hilly region, of course. I continue to be delighted by the Halo Fixed-G rear hub. Perfect chainline also ensures a nigh on silent transmission. Acceleration feels tangibly brisker, too. I’ve reached my conclusions regarding the Tioga City Slicker tyres https://www.sevendaycyclist.com/tioga-city-slicker-tyres  
Richard Peace has been putting the Carrera cross city folding bike through its paces  https://www.sevendaycyclist.com/carrera-crosscity-folding-electric-
Pad changing presented an obvious opportunity to give the bike a deeper clean, than usual.  The Velo 21 dirty weekend pre-wash did a decent job. It’s a subtle formula that doesn’t foam, or anything visually exciting. Science suggests the surfactants are doing the business. Eating into the grime, rather than just foaming on the surface.
Suffice to say, it romped through organic grot and slurry, without needing to agitate. Even petrochemical based spatter slithered away, left marinating for five minutes and then rinsed. These Soma Fabrications Condor II shallow drop bar also arrived this week, so I wasted no time fitting them.  
Elsewhere, having averted potential castration, my Univega’s cassette was resembling one of those “fat balls” supposedly breeding in our sewer systems. An obvious candidate for Velo21 degreaser.
Chain, cassette, jockey wheels and ring came up quite nicely too. Not without a fair bit of elbow grease. It’s worth noting that Stealth, is a very stoical ceramic. I’ll need to see how it works on less tenacious lubes, before passing appropriate, fair comment.
I also checked the chain’s health, using this digital chain checker. Budget analogue units are dirt cheap, accurate enough too. However, I prefer the pin-point, in a glance confirmation. Chains don’t stretch, they wear. Consign to the bin, once wear measures 0.8mm.     
Time spent undertaking regular inspections and preventative maintenance is priceless. Aside from extending the life of expensive components, I’d rather be out, enjoying the miles than fixing stuff by the road/trailside. Let alone the long walk home. 
This housekeeping also proved the ideal opportunity to fit the Easton EVA wrap and swap back to the Schwalbe Marathon Mondial https://www.sevendaycyclist.com/schwalbe-marathon-mondial-tyres , now the threat of ice, has greatly diminished. https://www.sevendaycyclist.com/after-the-gritters-went-home
Bored with Brexit, red top tabloids have now fixated on extreme weather. Coastal flooding now tops the agenda.  
After some casual, late night trawling, I came across an Alivio rear mech, to replace the long serving Microshift M45. Crucially it was of a higher spec, and at the right price. I’ve stripped, cleaned and inspected the M45 and there’s surprisingly little slop.
I changed the cable and closer inspection revealed the SRAM chain was fit for the knackers’ yard, cassette not far behind (though thankfully, I already had an 11-28) so retired both.
Worth buying a stock of both, if you do big mileages and/or ride in harsh conditions. However, as I’ve said before, there’s a fine line between sensible stock-piling and hoarding.
Cassette lock-rings can become very stubborn, even when they’ve been given a lick of stiff grease. The 11-30 Sram was no exception, benefitting from a quick blast of penetrant spray.
11-28 tooth electroplated Sram replacement on the freehub body and lock ring greased, I torqued it to 40nms, reinstated the wheel, then cut and fitted the new chain. I ordered two, so there’s one on tap, when the chain checker chimes 0.8mm.
While the other 9spd components are in solid shape, I’ll stick to this grade of rear mech and consumables. Unless I’m presented with an interplanetary (hub gear) system, I’ll probably upgrade to ten speed. An Octalink crankset, Deore mech and Sun Race brifters seem good options. The production Alpina 506’s factory specification, was a mix of Shimano LX and XT.
At present, it’s an eclectic mix of Ultegra, Deore, 105 (equivalent) and some slightly lower end but extremely serviceable parts. Components that make it go and stop in excellent proportion. I’m a constant tinkerer, and some would say, contrary figure.  Who knows what will follow…

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...


Sunday, 14 February 2016

Tiramisu, Tyrants & Tubes









My favourite Italian treat was rudely interrupted by talk of deficits. Having explained there was no deficit (aside from the gulf between their perceived entitlement and legally binding reality) I resumed my meal and discussions of great depth and significance. The nature of which, I am not prepared to expand upon at this point. 
Meanwhile, back on the test bench Tubeless tyre systems are gaining popularity, on account of their tuneable, puncture repelling nature. In the same way “clinchers” began rivalling tubulars (Tubs) during the late 80s and 90s, I can see these overtaking high pressure wired-on rubber once conversion kits are perfected.
Tubulars retain a niche following even now. The need for sewing and gluing induces traumatic flashbacks but aside from reduced weight at the crucial points, rims themselves were proportionately much stronger.  Rather like the common cold, preventing punctures has been around since the dawn of pneumatic tyres.
Solid tyres re-emerge every so often and though they have improved slightly since the days I whizzed round the parental driveway astride my rod braked Raleigh Elf;  its disproportionate to price and overall performance.
Assuming you haven’t obliterated rims during the mounting phase and alienated your neighbours with a seamless band of expletives; those I’ve tried deliver a harsh and unforgiving ride that ultimately shakes spokes and fillings loose with consummate ease.
For most of us, dependant upon rim sections it boils down to a choice between bog standard butyl and puncture repelling tyre casings, thorn repellent tubes or the sealant type. All have their pros and cons and to some extent, rather like the glue-less v traditional patch debate; it’s a question of rider faith.
We’re presently putting a series of each through their paces at Seven Day Cyclist (www.sevendaycyclist.co.uk) to see how they perform overall, not just in terms of puncture prevention. Are they limited to asphalt, or can the bigger sections cope with canal path and similarly challenging short cuts…
It’s not difficult to appreciate the allure of a self-healing tube, especially for commuting. When I worked behind the counter, these were a real money-spinner but are the premium pre-filled superior to their budget counterparts? Are these repairable or bin fodder in the event they succumb to a big flint or thorn.  Is it better to fill standard tubes with aftermarket sealant, or buy ready made?
In my experience, the goo-filled genre works to the same basic science. Varying quantities of liquid lay dormant until a small hole appears; internal (air) pressure forces it to the affected area whereupon said sealant (theoretically) plugs the affected area.
Some pressure loss is inevitable and topping up with a hand pump, or Co2 inflator is generally required. Sometimes the latter are required to awaken the latex if it’s been slumbering a while, so don’t leave home without them, even using the most invulnerable tyre casings.
Piercings to a millimetre in diameter are pretty much their limit-hit a series of really nasty thorns, or the proverbial nine-inch nail with your name on it and chances are, you will be mopping up a big sticky mess. Hopefully, you didn’t forget the spare, pump, tyre boot etc and your riding companions will rally round, not laugh like crazed hyenas... Now; time for a batch before I head out for another quick blast along the lanes...