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Classic Motorcycle Mechanics

Classic Motorcycle Mechanics March 2021

Dedicated to the later classics and Japanese machines, Classic Motorcycle Mechanics has it all. Now 116 pages of road tests, rebuild guides, 'Street Specials' reviews and much much more... Staff Bikes - Classic Motorcycle Mechanics is the only magazine that "Buys its own bikes, rebuilds 'em and rides 'em".

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Land:
United Kingdom
Taal:
English
Uitgever:
Mortons Media Group, Ltd
Frequentie:
Monthly
€ 5,07(Incl. btw)
€ 41,89(Incl. btw)
12 Edities

in deze editie

2 min
graham matcham

With over 30-years’ experience in both manufacturing and retailing motorcycle tyres, as well as running regular tyre support at classic motorcycle track events, what Graham Matcham thinks is worth listening to – I asked him five things, and here’s what he said. Q: How old is too old for tyres? A: Tyre condition is subject to the process of material change, which continues slowly through time. This will only have a detrimental effect on performance after a period of between five and 10 years. How long do they last? That will largely be dependent on storage conditions. Q: What are the age limits on new stock held by tyre retailers? A: There’s actually not a firm legal position, but responsible retailers protect their customers against aged tyres and the potential of reduced performance in…

4 min
spring is out there – somewhere!

You’ll notice a few things different in this issue. Firstly, we have a two bike main test… Yes, we’ve previously always stuck to a single bike main test (pretty much since I’ve been at the helm) but we thought we’d mix it up a bit! Sure, it makes it more expensive, but if we can do it – we will. Alan Dowds brought along our good friend Dave ‘The Goat’ Smith, formerly of SuperBike magazine, to lend a hand. So, let us know what you think. Along with Dave come a few more returning or new faces so we’ve had to shuffle the ‘flannel panel’ along a bit! Chris Moss returns to the pages of CMM as he mourns the loss of biking as it used to be! Let us know if…

2 min
raging ralph!

CMM’s own miserable ‘Brexit bar-steward’ on what’s wrong with the modern generation! My motorcycling started, albeit illegally, in the late 1970s aboard my old dear’s C70 Chicken Chaser. I made a ‘spare’ key for it in school in metalwork so that I could have illicit rides any time my parents were out. I was talking to the young lad over the road, when he was attending the same school that I went to all those years ago. I was waxing lyrical about how my metalwork teacher had inspired me with a lifelong love of engineering. Not any more, he informed me; the nanny state had decreed that virtually any tool is too nasty and dangerous for today’s little darlings. Apparently, they had one CNC machine that they weren’t allowed near lest…

1 min
whit’s whispers and moans!

James Whitham – multiple British motorcycle racing champ on why things were better back then! Right, all modern sports bikes on the road today are so good they are better than anyone can BE on the road so you can’t ride them to their potential without being banned, hurt badly or worse. So, do I want to do 200mph and wheelies? Not any more. One of my pet hates is this: back in my day riding bikes you knew there were speed limits but you wanted to go a bit quicker. Not kill anyone… or yourself, or hurt anyone… but if they caught you, it seemed fair as they had to chase you first. Today it’s a camera. It doesn’t care what sort of day you had or what’s gone wrong in…

4 min
going bonkers over bosozoku

Define fashion. Go on, I dare you: bell-bottoms? Lederhosen? The Stones? Paisley pyjamas? Or maybe Elsies, or clip-ons and rear-sets or ape-hangers! I’ve suffered many diverse ‘fashion’ requests over the last 50 years or so, psychedelic paint jobs, ‘King & Queen’ bum perches and, to my eternal shame, I’ve been paid to install the likes of pike nuts, mirrors, mudflaps, and front (and rear) tower carriers on many an LI, TV, GT or SX Lambretta, (times woz ‘ard, we needed the brass, I’m not proud). In my late teens some of my mates had choppers. If you didn’t know, the chopper was/is a custom bike, with small tank, high bars, chrome and paint according to job, overtime and generosity of mates/ sibling sisters. Invariably Triumphs. Okay then, a couple of Beezers,…

4 min
am i boring you?

If you are going to rebuild an engine you need to measure what you have got, to determine what is and isn’t within the manufacturer’s specification. The fit of the pistons in the cylinders will have a massive impact on the performance of the engine and must be within quite close tolerances to be healthy. When you see a bike belching out smoke, the chances are that the pistons are not a good fit in the bores, which leads to myriad problems. Whilst the engine is in one piece there are tests that can give indications of trouble with the mill, including the ubiquitous compression test, though a leak down test is more reliable. The only real way to quantify what you have is to take accurate measurements where the factory manual…