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MisterPrice10... |
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MisterPrice10... Derestricted Danger
Joined: 25 Sep 2018 Karma :
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Riejufixing |
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Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
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Posted: 23:12 - 09 Oct 2018 Post subject: |
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Initial feeling: leave it as it is, go "flat out" and change the oil more often.
Next feeling: If you're going to change the sprockets, add 1 to the gearbox sprocket (if that's possible) and keep the (new) rear the same, from an engineering point of view.
Another: It might achieve a slightly higher top speed, depending on whether there's any limit apart from power available.
Last: Buy something else that's a 125 but has a higher top speed as standard. Consider an RS3.
Edit: Wat is this about people wanting to tune CG125s? Just buy it and use it, just as it is. Maybe *still* change the oil more frequently, and oil other bits too as routine maintenance.
Re-edit: If Mr Honda wanted his CG125 to do 70 by having differently-sized sprockets, he would've made it like that.
Last edited by Riejufixing on 23:36 - 09 Oct 2018; edited 1 time in total |
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jaffa90 |
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jaffa90 World Chat Champion
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WD Forte |
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WD Forte World Chat Champion
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Teflon-Mike |
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Teflon-Mike tl;dr
Joined: 01 Jun 2010 Karma :
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Posted: 01:01 - 10 Oct 2018 Post subject: |
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No.
Top speed is a function of power, not gearing.
Raise the gearing on a CG that much, it will likely just top-out at the exact same speed it does now... about 60-65 in favorable conditions.. just in 2nd or 3rd gear... and struggle to accelerate like you had pulled away in 2nd or 3rd gear!
On L-Plates.... you are limited to 15bhp. That allows about 70-75mph, again in favorable conditions. This is the preserve of the 'premium' 125's like the CBR125 or such, and even there not all will achieve them speeds that often, depending on their style. It's not in the perview of anything much that has air-cooling and just one cylinder, and certainly not anything with push-rods!
Learn to live with it... the low-power begging you work that much harder to get what little they may offer, CAN be 99% of the fun, meanwhile you can enjoy the ecconomy.... ____________________ 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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BusterGonads |
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BusterGonads Trackday Trickster
Joined: 18 May 2018 Karma :
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Posted: 23:02 - 10 Oct 2018 Post subject: |
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Riejufixing wrote: | Initial feeling: leave it as it is, go "flat out" and change the oil more often.
Next feeling: If you're going to change the sprockets, add 1 to the gearbox sprocket (if that's possible) and keep the (new) rear the same, from an engineering point of view.
Another: It might achieve a slightly higher top speed, depending on whether there's any limit apart from power available.
Last: Buy something else that's a 125 but has a higher top speed as standard. Consider an RS3.
Edit: Wat is this about people wanting to tune CG125s? Just buy it and use it, just as it is. Maybe *still* change the oil more frequently, and oil other bits too as routine maintenance.
Re-edit: If Mr Honda wanted his CG125 to do 70 by having differently-sized sprockets, he would've made it like that. |
Well said - especially the last re edit above - except I'd say leave the sprockets standard. I reckon you'll find that taking gearbox sprocket up one will make it horribly over geared and will stop it reaching its normal top speed in top gear, except down hill with a tail wind. My CG is low mileage, in tip top nick and all properly adjusted and although it will run along happily for fifty miles at 60 mph on the flat, if I come to a big hill, it won't sustain itself with my twelve stone carcase on the seat. Same into a moderate headwind. It sometimes slows to 50 wide open throttle into a decent headwind, so gearing it up will make it slower for sure unless the rider is an eight stone pixie in aerodynamic clothing.
I wouldn't advocate going the other way either with the gearing. when I got mine it had been owned by a great big fireman who used to take is wife on the back (whom he described as 'a big lass'. Might have worked for them, but for me the thing was really short geared. I put it back to standard and it was much nicer to ride. If you need a lower gear than top on a hill or into the wind - just drop a cog and let it rev. It will be fine. You really don't need to change the overall gear ratio; it has loads of low ratios - gears one to four.
Last edited by BusterGonads on 23:16 - 10 Oct 2018; edited 1 time in total |
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BusterGonads |
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BusterGonads Trackday Trickster
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BusterGonads |
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BusterGonads Trackday Trickster
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MisterPrice10... |
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MisterPrice10... Derestricted Danger
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bladerunner |
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bladerunner World Chat Champion
Joined: 09 Sep 2006 Karma :
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Teflon-Mike |
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Teflon-Mike tl;dr
Joined: 01 Jun 2010 Karma :
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Posted: 03:50 - 12 Oct 2018 Post subject: Re: Thanks for replies! |
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MisterPrice1000 wrote: | Might just convince the other half to do her full test, then can buy something with decent power I can commute on and she can have at the weekends! |
There's a possible double whammy in there; if you sell the notion of a DAS course to her as being for her safety.. cos you dont want her mangled, loik.... and doing the lessons before being let loose on the road to learn by mistake, SHOULD mean less and far less severe mistakes.... sell it as a 'Safety' thing.... THEN, you can get her a 500 or something instead of a CG, which would be more your ideal commuter anyway.
There's also a cost argument; the 125 Super-Dream costs aprox 50% more a year to insure 'like for like' than my CB750, which in term is about 20-30% more a year to insure than Snowies Bludi-Guzzi 750, on more restrictive miles and use cover... the extra tax DOES eat up that saving... b-u-t, the bigger bikes needn't be any more expensive to run all-in, and may be a tad cheaper to offset the training, that buys you 'safety'.... the bigger bikes with more mass and more and more flexible power can also be 'easier' to ride to boot...
Go talk to some schools; book a CBT and see if you can do a 'deal' to let her try a 500 DAS bike at the end, if she takes to it.... that taster alone is oft enough to convince some-one of the merits of the bigger bike.
THEN go ponder bikes for sale.... the O/H's ideas may make a 125 of any sort rather redundant IF she don't like this biking lark at all.... especially if she does CBT this time of year in the wet and miserable.... OR could make the 125 idea redundant as she wants to do DAS and get a Harley-R1-Ninja-Blade.. Or or or... perms are endless... but UNTIL that area of uncertainty sort of clarified a bit, almost ANY bike bought to try and meet the assumed feelings and wishes of a committee... is gonna be an expensive camel, that proves to fulfil few feelings needs or wishes of any-one!!! ____________________ 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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Old Thread Alert!
The last post was made 5 years, 196 days ago. Instead of replying here, would creating a new thread be more useful? |
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