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Marc Abbott Product advice

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When should I change my tyres?

Marc Abbott, 25 January 2011 15:10

I’ve been told that the legal minimum tread limit is 1mm. Should I let the tread go this low or should I change the tyre sooner? I don’t race my bike, it's only used on A and B-roads with very little motorway use. I have checked the tread tonight and I have 1.6mm of tread left, I just don't know ...

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Is my Bandit 600’s fuel tap faulty?

Marc Abbott, 25 January 2011 15:04

I have a 2000 Suzuki Bandit 600 and when I have the fuel tap in the ‘on’ position it starts to run poorly, as though it isn’t getting enough fuel. But when I put the fuel tap to the ‘prime’ position it runs fine. Do you think the fuel tap is faulty or could it be something else? Jackie Reid, ...

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Aftermarket BMW F800ST exhaust fuelling problem

Marc Abbott, 18 November 2009 13:13

Q. I have recently bought a 2009 BMW F800ST and changed the can to a Remus exhaust, which has improved the torque and general performance. Save cash on motorcycle exhausts I have had the bike on the dyno to check it out and the power at the rear wheel is up by 3.5bhp. However the fuel/air ratio is reading out at ...

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Tyres FAQ: Why are tyres black?

Marc Abbott, 05 August 2009 15:06

There isn't any natural rubber in a tyre's construction. But there are about 200 raw materials from man-made rubbers, reinforcing fillers, rayon, nylon, all sorts of additives and aramid fibres. Aramids are heat-resistant synthetic fibres with tradenames like Kevlar and Nomex. This mix is susceptible to damage from ozone and ultra-violet light so manufacturers add carbon black to absorb the ...

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USD versus conventional forks

Marc Abbott, 16 July 2009 09:13

Suspension-wise, given springs and dampers of equal quality, there is no difference between upside-down and conventional forks. But the fork leg is not a suspension unit, it is also a structural chassis member. This is where the USD unit has the advantage. When in a turn, or more significantly on the brakes, there is a bending force exerted on the ...

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How to extract a weathered header pipe bolt

Marc Abbott, 18 June 2009 09:44

If your socket just spins on the bolt, don't panic! Go for a run on the bike to get it really hot, then when you get back leave it ticking over for 5-10 minutes. Compare and buy motorcycle exhausts You'll need a 12mm multi-sided socket. Hammer this over the bolt head and then attach the socket driver and slowly and ...

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Why does a single-shock set-up work better than twin shocks?

Marc Abbott, 18 June 2009 09:18

The greatest difference comes from how the dampers are driven. With twin shocks the dampers travel almost the same distance as the wheel. Compare and buy suspension parts The tends to over-heat the oil in the unit. With a single-shock system the wheel to damper travel is geared down to a ratio of 2.5:1. This massively reduces the internal friction ...

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Clothing advice: summer gloves with visor wipes

Marc Abbott, 16 April 2009 13:13

MCN expert Marc Abbott is here to answer any questions you have on anything bike related. If you have any questions, ask an expert here Q. All the bugs have started coming out again, so my visor is covered in dead beetles after only ten minutes of riding Can you recommend a pair of summer gloves with something to wipe my visor ...

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