Here's why I've forgotten big performance numbers to focus on fun with the Yamaha XSR900 GP

Last time we spoke, I’d moulded the Yamaha XSR900 GP into a bike that’s more manageable over distances, but it still needed a little more edge in the corners. Step one? A set of Pirelli Diablo Rosso IV tyres, which sit at the sportier end of the road spectrum, without going too extreme.

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• Update one: First impressions of the Yamaha XSR900 GP
• Update two: Aftermarket accessories make a big difference

The OE Bridgestone S23s are impressive up to a point but they do run into their limitations – specifically on the edge of the tyre, while hours of abuse in warm conditions have played their part in a reasonable amount of wear on the shoulders after 2000 miles of use.

Upon fitting the Pirellis and giving them a quick running in, there is a noticeable difference – although not where I expected. Yes, they feel sharp in warm conditions and offer an abundance of grip and feedback, but it’s actually in the colder, wetter conditions where I’ve felt the most advantage; whereas before the GP felt a little tentative as grip worsened, it now feels planted, no matter what the UK’s glorious weather might throw its way.

Along with the tyre change, I’ve also found a few changes to the suspension set-up make a welcome difference. I’ve upped the preload by a few clicks on the rear, in order to try and get a little more support under acceleration and to utilise the extra grip, which works wonders.

This compresses the spring and lifts the rear slightly, which in turn actually gives a slightly sharper feeling on the front end – something that I’ve been longing for to combat the relatively long wheelbase and stable nature that the GP has. On the flipside, the GP is now a little harsher where normal road riding is concerned, but that’s a price worth paying for when the perfect strip of tarmac presents itself.

I’ve also softened the compression on the front in order to try and get a little more dive and load through the front end. Little changes, but all of them make a big difference – especially as the braking power isn’t brutal enough to upset the front too much. As you’re reading this very article, I should have a set of EBC brake pads heading into those calipers, because I’d still like to gain a little more bite when it comes to braking power.

Speaking of power, I thought I’d be chasing ponies, but for the road that triple is still absolutely spot on, whether on cruise control down the A1 or smashing against the throttle stop from corner to corner. Forget big numbers, and focus on fun.

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