strange back end behaviour on CG125

[White Noise]

alright
as some of you know i failed my test on weds, so today i hired a CG125 to do some riding on my own and get some more road experience.
as i was riding something strange happened that i haven't come across before and need to find out what it was.
i was riding at 30 just going over a railway bridge, the slope on the other side is quite steep and has got traffic lights 50 metres past it. as i got over the brow of the bridge i saw there was a cue of traffic so i braked and changed down about 3 gears and released the clutch, and i did the back end felt strange, like i haven't felt before.
i figure that the large amount of engine breaking linked with the front breaking, going down hill made the back end lock and skid.
has anyone got and opinions?
Cheers
WN
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Buy my wife: 96' Yam XJ600s (Diversion)
Wing Commander White Noise - SE Clique
Riding Tip #86: See God, then back off a bit: Problem is i haven't seen god yet, just a close up of tarmac on revett straight

[Dom_]

Why the hell did you drop down 3 gears and then release the clutch???

You wouldn't upshift 3 gears all in one would you!

[White Noise]

i was shifting it down into first as i was getting ready to stop, too early to be honest, and for some reason let out the clutch! yeah newbie mistake
WN
____________________
Buy my wife: 96' Yam XJ600s (Diversion)
Wing Commander White Noise - SE Clique
Riding Tip #86: See God, then back off a bit: Problem is i haven't seen god yet, just a close up of tarmac on revett straight

[.....]

yeah just sounds like you shifted down too many gears so when you released the clutch your engine speed was not matched to your rear wheel speed causing it to lock up. Be gentler with the downshifts- not so many gears in one chunk, and let the clutch out smoothly. You can blip the throttle between shifts but you probably want to leave that until you get a bit more experience.

[Ste]

Bikes do that. Change down and drop the clutch and the rear wheel will lock. Changing down three gears and dropping the clutch is one sure way of getting the back wheel to lock.

Simple solution is don't drop three gears and then release the clutch, well not in your test at any rate. Nothing wrong with doing it if you want to normally, on bigger bikes you can drop it when coming up to traffic lights and then get the back end to start jumping around a bit when the wheel locks.

It was engine braking rather than front braking which caused the back to lock.

[White Noise]

[Valentino Mossy]

Had the same thing happen to me yesterday, comining down a hill, around a bend and changed down too many gears.
Kinda weird felling having the backend sliding around.
Nice , but weird !
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[Dom_]

You could probally do it successfully if you let the clutch out super slow

[Flip]

[mr.z]

Under normal circumstances it would be iffy, if you were on a slope down, you'd have more weight on the front, brakeing will also increace the load on the front, then the wheel wants to spin 2x faster than it was a second ago... unloaded back not helping = slidey!

With brakeing do everything smoothly, slam the brakes on, drop too many gears and let the clutch ping out it will kick you in the ass, even a cg.

Don't let it worry you, better to do it on a cg than a 4cyclinder monster, these bikes can be frightening in their own way, feeling the frame bending as you corner, the engine hammering away on the raged limmit and then trying to stop on skinny tyres with archaic brakes... if you can ride one of these for a year then your ready for most anything, biger bikes are FAR easyer to ride.

Another thing, use both brakes equally, you need both! plan as far ahead as possible so you can actually stop in time (they should come with a crystal ball attached ideally)

Good on ya for keeping at it though, its worth the effort
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[Dom_]