I have owned and absolutely loved my 2000 RC for 2 years. I do occasional track days, but mostly spirited street riding and commuting (Hey, I know it's not a commuter, but I love this thing, sound, power, etc...). It has stock suspension. May even still have stock fork oil.
Previous owner owned it from 2001 until 2010 and he gave me pretty meticulous service info (oil changes, brakes, tires, battery etc..) but come to think of it, he never mentioned having the forks serviced. From the research I have done, the stock suspension is set for a 180lb rider. I want to set the suspension up more for my weight. Slightly more. 270lbs. I consulted Racetech's website and spring calculator for springrates.
FRONT FORK SPRINGS
Recommended Fork Spring Rate: 1.096 kg/mm (use closest available)
Stock Fork Spring Rate: .959 kg/mm(stock)
REAR SHOCK SPRINGS
Recommended Shock Spring Rate: 10.875 kg/mm (use closest available)
Stock Shock Spring Rate: 9.8 kg/mm (stock)
I have picked up a 10.7 kg/mm spring (not from them, but the closest they listed). It was quite a bit of difference over stock compared to the front.
My questions are.
1. Their website lists a 1.0 kg/mm fork spring as the highest rate. Will a 1.0 really make that much difference over stock (.959)?
2. What weight fork oil would be recommended?
3. Will I notice any handling issues with just changing the fork oil and replacing the rear spring with the higher rate spring?
4. How thick of a shim would be recommended on the rear shock?
I know an Ohlins or other aftermarket suspension would be great, but I would just like to bring my stock up to snuff for my "larger than Honda's ideal rider" size. I am fairly pleased with the bike's handling as is, but I know it can be better.
The bike has 23,000 miles.