I have a Regal Raptor Daytona 350EFi, in two years the maintenance costs were the same as the cost of the purchase price of the bike. Then my mechanic came up with the best idea ever. Get shut of the Fuel injection system and replace with twin Carbs, we did so, the speed for some reason has increased, the fuel consumption has decreased and for 2 months now my bike has not been in the mechanics. The answer is simple, stay away from RR Fuel injected systems they are just not strong enough or reliable enough. I too had my tank off for repairs 3 times, the rear metal bracket was not strong enough and cam away from the tank. I had one hand crafted and again no problems. In 2 years I have had to rectify the following, recharge the front forks they were leaking, new Japanese chain, replaced clutch to a Japanese make, leaking fuel system, new front wheel bearings, 2 fuel tank leakages, and many minor problems. My advice is when changing parts, change to Japanese made parts, they are more reliable and have more serviceability, stay away from the EFi Models, RR have not got their act together yet and the system is not reliable. Finally the bikes themselves are attractive and when all the problems are solved they are reliable, I would buy another because they are good value for money but would not consider an EFi Model. Incidentally by the end of this year Regal Raptor should have finished developing their 600cc Engine which I am sure will be welcome in England. I hope they have developed it enough to give 600cc performance.