BST Carbon Fibre 5 Spoke Diamond TEK Wheels for Aprilia RS250 1998-2003 (and 1995-1997 - see note)

"The wheels were the last thing I changed and they should have been the first. They are very light, not far off half the weight of the originals. When you are flip-flopping through tight bends it is like someone is helping you."

Dave Bimson, Performance Bikes Magazine Oct 2014 article
Modified RS250

"I took it for the first ride up my favourite mountain (Mt Glorious, west of Brisbane). Having not been riding for quite some time, I took it fairly easy, but could instantly feel what you claim the wheels do to the bike. It is like it had power steering in a car, plus the acceleration and braking was remarkably improved beyond doubt (wheelying by itself in the low gears and stopping even easier than before)...

Anyway, this is a bit of a long-winded thank you, but I cannot describe how happy I am with your wheels.

I took it for a second ride with the wheels, knowing it was definitely all good now. It was the weirdest thing. I tried to go slow, but the bike rode itself faster somehow. I usually go easy on the way through the mountain (checking conditions, accidents, debris, water etc) and then come back through at a decent pace if all is good. I stopped at the back of the mountain and my tyres were already scrubbed right to the edge, front and back, and I did not feel like I had pushed it much at all. I was amazed.

The areas that the RS250 suffers are really tight, steep, uphill corners where it is too close to redline in 1st gear and below the powerband in 2nd. I geared it down with front and rear sprockets and this improved it somewhat, but it was still an issue. Now the bike can do whatever you want it to in those corners. Not only does it go through the corner faster anyway, but it accelerates easily up the hills. Changing or holding line in any part of the corner is no issue at all. This used to take lots of mental fortitude for me.

The many downhill, off-camber, decreasing radius, double apex, blind, bumpy corners that used to inspire fear in me are now replaced by balance, confidence and control. Not anymore, the bike rode itself around them. I was ecstatic and kept telling myself not to get carried away in the moment, and I did not. No loss of grip, no crossing centre lines, easily avoiding random gravel and road debris...

So in conclusion, these wheels have made the bike into a perfect motorcycle. It seemed like a crazy spend at first, but I could not ignore the claims on your site and the other testimonies on forums. The wheels have done everything you claimed and much more. I will never sell this bike and I do not want a litre bike.

This is the most engaging, satisfying, surprising little machine I have ever come across and the wheels have eliminated anything that it ever lacked. They actually cost me more than I paid for the bike, but I have zero regrets. I see Aprilia RS250s are fetching 20K dollars in Australia these days though, making the investment totally justifiable.

A genuine, massive thank you to you and your company for not wasting my money and fixing everything!"

MH, Australia
Aprilia RS250