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| MaximusHeisen... |
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 MaximusHeisen... Derestricted Danger
Joined: 14 Jun 2015 Karma :   
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 Posted: 14:23 - 14 Jun 2015 Post subject: First manual bike/new rider issues |
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Hi all, new here.
Been riding automatics for quite some time, just got my first manual bike which is a CBR 125 and having real issues, seem to panic on it.
The main issue is downshifting and coming to a stop, I can upshift fine.
I tried going 50mph the other day, I was in 5th, I pulled in the clutch downshifted to 4th, let the clutch out, pulled the clutch in went to 3rd, let clutch out etc until I got into 2nd or 1st and I think I revved it too much in the RPM's and I think the back wheel locked up and I skidded but managed to keep control of it but it was scary.
Does engine braking damage the engine? The last thing I wanna do is blow it up or mess up my transmission.
I've only ridden it twice, I feel nervous getting on it at the moment.
I'd like to ask though.
If I'm coming off an A road at 60-70mph and I'm in 6th, and theres a roundabout just after exiting the A road, what would your sequence be? Keep pulling in and releasing the clutch and downshifting to 2nd or 1st and braking? Or would you just brake and slow right down and pull in the clutch and kick it all the way into 2nd or 1st when about to stop?
And if your in 3rd or 4th and theres a red light ahead, I presume it's best to just brake, pull in the clutch and then kick it all the way to 1st?
I just want to know the best way or procedure of coming to a stop and downshifting when say going 30-40mph and when going 60mph-70mph etc and just some general advice.
I'm guessing on the CBR, it's good to change gears at about 5000-6000rpm?
Cheers.
Last edited by MaximusHeisenberg on 14:38 - 14 Jun 2015; edited 1 time in total |
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| Andy_Pagin |
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 Andy_Pagin World Chat Champion

Joined: 08 Nov 2010 Karma :    
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| MaximusHeisen... |
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 MaximusHeisen... Derestricted Danger
Joined: 14 Jun 2015 Karma :   
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| delsol |
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 delsol World Chat Champion

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| MaximusHeisen... |
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 MaximusHeisen... Derestricted Danger
Joined: 14 Jun 2015 Karma :   
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| NJD |
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 NJD World Chat Champion

Joined: 11 Mar 2015 Karma :    
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 Posted: 16:04 - 14 Jun 2015 Post subject: |
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| MaximusHeisenberg wrote: | The main issue is downshifting and coming to a stop, I can upshift fine. |
But can you?
From the comments above is sounds like you're already confused about what speeds are obtainable in what gear, what gear you should be in at what time etc.
You may be learning to up-shift quicker than downshifting because there's less to get wrong, going in a straight line pinning the throttle working your way up the gearbox is easier than slowing down and working out what gear to be in, there's more to get wrong in the latter than vise versa.
You're never going to reach the top speed on a 125cc if you short shift the gearbox and don't make the most of the rev range, don't be afraid to make the engine scream to get it going, it's not abuse.. it's riding it how it was designed to be.
1st gear = enough to get you going from a dead stop (that's it).
| MaximusHeisenberg wrote: | I've only ridden it twice, I feel nervous getting on it at the moment. |
You will do for a while, although the more you get out and ride and think about it less the more your confidence will increase.
Make mistakes and learn from them.
| MaximusHeisenberg wrote: | Keep pulling in and releasing the clutch and downshifting to 2nd or 1st and braking? |
This.
Although does depend on the field of vision on the roundabout, if you can slow down gradually and combine using the brakes with downshifting one by one then your in better stead to just go straight across the roundabout (if clear) rather than come to a complete dead stop (annoy the car behind) and then possibly miss a chance to get going.
When learning (as you are at the moment) on major roundabouts just come to a stop at the give way markings and wait for a gap and go for it, you'll pick it up quickly and learn it as time goes on.
| MaximusHeisenberg wrote: | just some general advice. |
Ride around some local routes, with plenty of give ways, roundabouts etc.. the more you have to come to a dead stop from speed the faster you'll pick up how to read the road conditions and what gear is required when.
(Getting out and about on your bike is the only way to improve, picking some quiet times of day on non built up areas may be the best way to start out with). |
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| robertw95 |
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 robertw95 Trackday Trickster

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| MaximusHeisen... |
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 MaximusHeisen... Derestricted Danger
Joined: 14 Jun 2015 Karma :   
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| Snop Doog |
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 Snop Doog Brolly Dolly

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| TheArchitect |
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 TheArchitect World Chat Champion

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| KnuckleShot |
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 KnuckleShot Scooby Slapper
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 10:22 - 15 Jun 2015 Post subject: |
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When I got my first 125, I went straight to the local industrial estate and invested a couple of hours in doing exactly what I'd done on my CBT: low speed, round and round, clutch slipping, stop and go, up and down 1st, 2nd, 3rd.
Boring, yes.
Useful, definitely. ____________________ Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike |
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| Teflon-Mike |
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 Teflon-Mike tl;dr

Joined: 01 Jun 2010 Karma :    
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 Posted: 12:40 - 15 Jun 2015 Post subject: |
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Big newbie error given a gear-box is over using it... riding on the gears not the throttle.
Relax; every up-shift you DON'T make is a down-shift you wont have to make.. and two potential fuck-ups avoided.. so DONT change gear unless you have to... use the throttle to change speed and only up-shift when you have no more revs to use.
Down shifts is where most struggle, and yes, it can break the engine, if you totally fuck it up... on the race track, it's actually more common to 'blow' an engine from crashing down than it is from over revving it, too far into the red, or missing a gear.
If you are traveling at 50mph, in 5th gear, pulling perhaps 8,000 rpm, banging straight down a gear, the lower gear ratio of 4th, would probably give something like 40mph at 8,000 revs.. doing 50mph road speed, one of two things will happen, either the back wheel will drive the engine up to, what, 10,000rpm, OR the engine will tuyrn the back wheel 10mph slower than you are going, and you have an effective 'skid'. If you are going fast enough then, and the difference in gearing is high enough, 'crashing down' can drive the engine's crank revs WAY above the red-line marking the 'safe-speed' the crank can spin up to, under the motor's own power, and driven by momentum, it can put even more strain on bits of engine than you ever will accelerating, even reving the knackers off the thing, where normally, it'll run out of revs of its own accord, or an ignition rev-limiter, long before it'll do itself harm.
But, as I think you have discovered, more likely outcome on a road bike , particularly a lightweight, is that the wheel will just turn slower than road beneath you...
However... don't change up unnecesserily, don't have to change down unnecesserily.. and you can avoid the problem.
When you DO have to change down.. its changing up in reverse, and as said, if you use the throttle rather than the gears, when you ARE traveling at higher speed, you should be at higher revs, and you can get 'engine braking' from closing the throttle; and the revs will start to fall as you slow, and there will be no issue of the wheel-speed changing in relation to road-speed... WHEN the road speed has fallen back to where you changed up, and the revs are what you had after that up change... THEN you can change down... and the revs will be driven back up to whatever 'safe' revs the engine was making before you made that 'up' change, so you wont over rev the engine, and you are unlikely to get a mini-skid.. might not be very smooth.. but with practice that will come.
Little bit of generic advice.. DON'T RUSH.. rushing be fast way to hurt on two wheels... applies to many many things, not just how fast you ride... but significantly in this instance.. don't rush to get into a higher gear, don't rush to get back down to a lower one, and don't rush the changes themselves. aim for 'slow & smooth' and speed will follow. Its a more haste less speed thing in action.
So in short.
1/ Use the throttle more, use the gears less.
2/ Push the up-changes higher up the rev-range
3/ Bring the down changes further down the rev-range.
4. DONT RUSH ____________________ My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?' |
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| MaximusHeisen... |
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 MaximusHeisen... Derestricted Danger
Joined: 14 Jun 2015 Karma :   
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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Old Thread Alert!
The last post was made 11 years, 15 days ago. Instead of replying here, would creating a new thread be more useful? |
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