explain pls

I'm pretty sure wet clutches don't use teeth, just plates under compression. if they were teeth you'd hear a horrible grinding noise when you slipped it.

Wet clutches are just like the clutches in most car's automatic transmission the difference in a bike you manually engage the spring pressure, in a cage automatic transmission the pressure is applies with a hydraulic pump (torque converter)

Originally Posted by RandyO

Wet clutches are just like the clutches in most car's automatic transmission the difference in a bike you manually engage the spring pressure, in a cage automatic transmission the pressure is applies with a hydraulic pump (torque converter)

Manual cars are the norm here, not automatics.

[Sid Squid]

Originally Posted by Wiltshire7

Hi

Ive seen this mentined a few times so please explain...
'the forks pit'

Corrosion on the lower part of the forks, the slider, which is made of an aluminium alloy, when aluminium corrodes it often takes the form of small 'pits' like when you get a dental cavity, hence 'pitting'.

Originally Posted by Wiltshire7

also, which im asking
radial brakes

Radial brakes differ in the way they are attached to the suspension, on your SV for instance, the bolts holding the caliper are in the same plane as the wheel axle, that is they are axially mounted, on a bike with 'radial' brakes, the bolts are on a, roughly, 'radial' plane, note this ain't entirely true, if they were indeed radially mounted they would not be parallel, and mounting the caliper would be awkward.
Radial brakes should be more rigidly mounted, so there will be less distortion of the braking system mechanics in extreme circumstances, the benefit on a road bike is arguable, but if nothing else, if it reduces the amount of lever pressure needed it might be a good thing.

Originally Posted by Wiltshire7

tank slapper

When the steering oscillates uncontrollably, sometimes from lock to lock, usually within the frequency 3-5 Hz.
Many people think that a slight 'headshake' is a 'slapper', it isn't, a true tank slapper can occur with a sudden and vicious violence sometimes able to break a wrist before it throws your hands off the bars, a real one is truly scary, and that's just if you're watching.

A wet clutch doesn't refer to it's construction, either single - (most cars Guzzis and Bee-Emms), or multiplate, (most bikes), it just means it's in oil, a dry clutch isn't.
Automatics use a 'Torque Converter', sometimes referred to as a fluid clutch, this shares nothing with the above mentioned clutches and works by an entirely different principle not including friction materials.

Standard caliper



Radial caliper



What you're looking at: Bolts holding standard calipers run parallel with the wheel axel, on radial calipers they are perpendicular. The geometry of why is a bit too difficult to explain simply in words, but standard calipers place limits on the size of bolt connecting them to the fork, radial calipers do not.

ok - whats the difference between an o-ring chain and an X-ring chain ?

which one lasts longer and is the better one to use.


i got half the clutch one right if you would have asked me that a year ago - i wouldnt know any of the answers.


ok - whats the difference between a sequencial gearbox over a standard gearbox ?

Originally Posted by bikageboy

ok - whats the difference between a sequencial gearbox over a standard gearbox ?

Sequential = gears are selected in sequence, e.g. 1, 2 3, 4, 3, 2, 3, 4, 5, 6....... Up or down one at a time.

Conventional = select any one you like, change from one to another as you wish - as in a car.

[Sid Squid]

Originally Posted by bikageboy

ok - whats the difference between an o-ring chain and an X-ring chain ? Which one lasts longer and is the better one to use.

Not much, it's only the difference in cross section of the seals used to hold lubrication into the chain, 'X' rings have four points of contact, and 'O' rings have two, in theory, an 'X' ring chain should be better sealed and have less friction, in reality you'd be hard pressed to notice the difference, as long as the chain, and therefore the seals, are kept wet, they'll be working fine.
As the difference in the two types is just the seals, expect to see less 'O' ring chains in the future, the advantage of 'X' rings may be slight but there's no difference in construction and a minmal difference in the cost of the little bits of rubber, so they'll eventually be universal.

Slipper clutches are a small tweak on a conventional clutch, the clamping mechanism is mounted such that a device is able to lift the clutch pressure slightly in the event of a significant level of back torque - usually a downshift at a high revs - so that it is less likely to lock the rear wheel in such situations. In essence it limits the amount of torque that the rear wheel can effect upon the engine.
In a racing situation this may allow the rider to change down to the necessary gear earlier than may otherwise be possible, knowing that engine braking is available but that the wheel won't lock and that when drive is needed just using throttle will give it.
On the road a device of dubious necessity, trick though.

Originally Posted by bikageboy

rather than our standard clutches which we have.
standard- when you drop a gear - as you dump it , the revs will raise bringing the needle close to the redline - doing your engine some damage.

Not quite. All modern engines have rev limiters to prevent this.

a slipper clutch will allow you to drop to any gear you like - dumping the clutch will cause it to slip - therefore not causing as much engine wear and rear wheel spin.

It's there to prevent the rear wheel locking (or at least spinning so slowly it apears to lock and has the same effect) - as we all know V-twins are particularly prone to this.

Personally I think for road bikes it's an idiot device to prevent riders with limited skills from hurting themselves.

As for the track, a different matter.


.

Personally I think for road bikes it's an idiot device to prevent riders with limited skills from hurting themselves.

ive got limited skills, im a new rider. dont quite see how it makes me an idiot though. I locked the rear wheel the other day by mistake....

u must have been born with the skills....