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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 21:54 - 30 May 2015 Post subject: Best engine displacement for city riding? |
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I am throwing around some ideas for a cafe racer build - probably with an 80s model bike. Its going to be a city ride, so as much as I would love to get a big, litre bike I think the weight would make it trouble around town.
Right now I am thinking that a 400cc should be about right, but also considering it will be a light weight, stripped back build I might even be able to get away with as low as 250cc. Like I said, I want light, nimble and nippy for city riding - it doesn't need to go super fast because I will never ride it fast. As long as it has a little umph off the line to keep things exciting that is fine.
More importantly, a 250 would be better because I don't have a full licence, and I guess smaller bikes are easier to build? It's a first build, so I want to keep it simple. That said, I don't want to go to all that trouble and then have a bike so small that I get bored. Of course, 80s 250s are much slower than today's I guess, so would it get boring very quick? |
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| Musketeer |
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 Musketeer World Chat Champion

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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 22:56 - 30 May 2015 Post subject: Re: Best engine displacement for city riding? |
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| mJZ wrote: | | wupwup wrote: |
More importantly, a 250 would be better because I don't have a full licence |
Without full licence you cannot ride anything bigger than 125cc, sorry.
But.. 125cc is perfectly fine for city riding. |
Ah, yes, but I could do my A2 test and that would allow me to ride a bigger bike, dependent on engine size and also weight to power ration. I would not be able to do my full test until I was 24 is what I meant.
Although this does bring up another question - just how useable are 125s in the long run? It might be better and cheaper to do up a 125 as a first bike. The downside is that customising would destroy the resale value, and I'm not sure I would want to sell something I put that much time and effort into, but I also wouldn't want to be stuck with an under powered bike that is no good. Are 125s any 'fun'? I know they arent fast.
Also, does anyone know the legality of an engine swap? Would I, say, be able to get an old 250cc bike, and put in a 125 engine until I pass my final test? I presume it would be a nightmare to insure, even if I could do it without ruining the frame so much I couldn't out the original engine back in later.
Then again, what makes a bike what? If I get a Honda CL125 and put all of the parts into a CL250 frame, is that then a 125 or a 250? Would I be able to insure that as a 125 with the correct plates? Presumably noone would notice either unless they decided to check the frame plates. |
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 23:05 - 30 May 2015 Post subject: Re: Best engine displacement for city riding? |
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| wupwup wrote: | I don't have a full licence |
Do you have any license? I ask since you've been talking about doing this since you were looking at Bandit 600s in 2010, which is as far back as I can bear to read. If you say "CBT" then God help your soul.
| wupwup wrote: | Of course, 80s 250s are much slower than today's I guess |
Depends on the 250.
https://www.motorcyclespecs.co.za/model/kawasaki/kawasaki_gpx250r%2086.htm = 45hp, 142kg
https://www.motorcyclespecs.co.za/model/kawasaki/kawasaki_ninja_250%2012.htm = 30hp, 170kg
Boring is as boring does. I enjoy using full throttle on the Enfield more than constantly rolling, rolling, rolling off on the GS. I'm currently looking out for another bike that's as 'bad' as the Enfield, in fact. ____________________ 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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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 23:47 - 30 May 2015 Post subject: Re: Best engine displacement for city riding? |
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Just my car licence now. As you can see, I have wanted a bike for a long, long time, but I decided that I needed a car more than a bike and didn't have the money for both. Now I can make it work financially, and I just have to decide what to do. Whichever 250 I go for it will customized, and will end up much lighter as a result, which might be a problem... |
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| rideslikean00... |
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 rideslikean00... Nearly there...

Joined: 26 May 2014 Karma :  
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 00:10 - 31 May 2015 Post subject: Re: Best engine displacement for city riding? |
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| wupwup wrote: | Just my car licence now. As you can see, I have wanted a bike for a long, long time |
Hang on, have you ridden any bikes?
I'm actually minded to agree with you that a 250 - 400 is good for city commuting, I just wouldn't cafe it because that's a riding position designed for high speed straight line runs up motorways.
https://www.extremecreations.com.au/themes/Standard/images/gallery/honda/CB350%20Cafe%20Racer%202.jpg
In any case, to get your A2 you'll be doing your training and tests on something like a CB500F, at 35kW/46hp and 175kg dry. After getting used to that, you might still want to go back down to a smaller bike, but I wouldn't make any plans around it.
License first, dream bike when you're in a position to ride it. ____________________ 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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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 00:44 - 31 May 2015 Post subject: |
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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 01:04 - 31 May 2015 Post subject: |
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Not yet - I will be 22 in a few months and will take it then, for the simple reason that it only lasts two years and I would be annoyed to have to pay to do it a second time to do my full test when I hit 24. But yes, right not I can't ride anything, but I don't fear my ability to pass a CBT (hell they even come with free re-takes these days).
More to the point, I need to build the damn bike before I ride it, so I need to decide what bike to choose (hence this thread). If I get a 250 I should be able to ride that on an A2 licence, dependent on the specific bike and weight, but to get a 400 would probably require me to wait until I have a full licence to meet the power:weight limits with a stripped back bike.
So, it depends whether 250s have enough umph to make them worth having long term, or whether I would get really bored of it really quick, and would be better waiting and getting a 400 when i turn 24. In which case I would have to be content with a 125 for now. |
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 01:27 - 31 May 2015 Post subject: |
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| wupwup wrote: | [CBT] only lasts two years and I would be annoyed to have to pay to do it a second time to do my full test when I hit 24. |
??? CBT A2. No need to re-do the CBT when you do A at 24 (or 2 years after you pass A2).
| wupwup wrote: | I don't fear my ability to pass a CBT (hell they even come with free re-takes these days). |
Depends who you go with. Some outfits do charge for extra days or half days.
| wupwup wrote: | but to get a 400 would probably require me to wait until I have a full licence to meet the power:weight limits with a stripped back bike. |
If you ever find anyone who cares about the 0.2kW/kg limit. I very much doubt it, there was still demonstrably common ignorance of the previous licensing regime after two decades.
AFAICT, all of the Japanese IL4 400s made (or claimed) in excess of 35kW as stock, so if you're bothered by the letter of the law you'd need to get them restricted or "restricted" for A2 anyway.
I won't evangelise too hard, but I'll just note that Enfields are natively A2 compliant, have decent torque off the line, are narrow and have a good turning circle. They're not actually light, but you don't feel the weight. 80mpg, cheap insurance and consumables, parts are easily available, including for customisation. I genuinely rate mine as a commuter. ____________________ 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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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 01:48 - 31 May 2015 Post subject: |
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| Rogerborg wrote: |
??? CBT  A2. No need to re-do the CBT when you do A at 24 (or 2 years after you pass A2).
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True, although i would then have to pay to do both the A2 and the A test. It might be the best option, but it does seem redundant to do a test twice, and pay for it twice too.
| Rogerborg wrote: |
If you ever find anyone who cares about the 0.2kW/kg limit. I very much doubt it, there was still demonstrably common ignorance of the previous licensing regime after two decades.
AFAICT, all of the Japanese IL4 400s made (or claimed) in excess of 35kW as stock, so if you're bothered by the letter of the law you'd need to get them restricted or "restricted" for A2 anyway.
I won't evangelise too hard, but I'll just note that Enfields are natively A2 compliant, have decent torque off the line, are narrow and have a good turning circle. They're not actually light, but you don't feel the weight. 80mpg, cheap insurance and consumables, parts are easily available, including for customisation. I genuinely rate mine as a commuter. |
Very true. I would prefer to keep it legal though - hell, I guess i could just restrict a 400 though. I presumed that most restricter kits were for bigger bikes than that, but apparently not. If I am re-building the bike I might as well restrict it myself while i am at it - can't be that hard
Enfields don't really do it for me - sorry  |
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| Slacker24seve... |
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 Slacker24seve... World Chat Champion

Joined: 10 May 2010 Karma :   
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 Posted: 07:43 - 31 May 2015 Post subject: |
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The fail is strong in this one. ____________________ Triumph Daytona 675 track bike + girlfriend's Honda Hornet 600
Selling a hack/winter bike for less than a grand? PM me.
Banger rallies are ace |
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| RhynoCZ |
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 RhynoCZ Super Spammer

Joined: 09 Mar 2012 Karma :     
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 Posted: 08:18 - 31 May 2015 Post subject: Re: Best engine displacement for city riding? |
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| wupwup wrote: | ...a cafe racer build - probably with an 80s model bike. Its going to be a city ride... |
Long tank, low handlebars, the foot pegs right below your arse. Well, it's not about the engine, is it? That'll be hell in city traffic, no matter what engine you get.  ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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| iooi |
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 iooi Super Spammer

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 Posted: 09:35 - 31 May 2015 Post subject: |
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| Pete. |
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| MCN. |
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 MCN. Banned
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 ajag Brolly Dolly

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| Wednesday Biker |
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 Wednesday Biker Spanner Monkey
Joined: 11 Sep 2014 Karma :  
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 Posted: 10:26 - 31 May 2015 Post subject: |
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Just buy a Sinnis Trackstar or a Skyteam ace 125. Ok for city riding and maybe the look you are after and then once you have some biking experience take your full test in two years.
Then you'll be more knowledge and know more what it is you want to build.
Otherwise you may never actually end up with a bike 
Last edited by Wednesday Biker on 10:29 - 31 May 2015; edited 1 time in total |
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| RhynoCZ |
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 RhynoCZ Super Spammer

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 Posted: 10:28 - 31 May 2015 Post subject: |
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| ajag wrote: | why? why do you need to make a bike you have no idea how it rides lighter? |
Because of Tv shows and youtube channels full of cafe racer custom builders.
| Wednesday Biker wrote: | Just buy a Sinnis Trackstar or a Skyteam ace 125. |
Why would one do that? I'd rather have 10+ years old Japanese bike, rather than a brand new well, sort of a motorcycle. If you look at the perspective, the brand new Sinnis or Skyteam will cost more to keep alive, than a 10 years old Japanese motorcycle, for which there are tons of parts available + we all know how reliable made in Japan motorcycles are.
On the other hand, we've seen many Chinese motorcycles made 5 years ago, or even more recently, running their 2nd or even 3rd engine.
TL; DR: look at the prices of those Chinese death traps, and take the money and buy yourself a used Japanese motorcycle.  ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor
Last edited by RhynoCZ on 10:32 - 31 May 2015; edited 1 time in total |
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| Rogerborg |
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 Rogerborg nimbA

Joined: 26 Oct 2010 Karma :    
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 Posted: 10:28 - 31 May 2015 Post subject: |
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| wupwup wrote: | i would then have to pay to do both the A2 and the A test. It might be the best option, but it does seem redundant to do a test twice, and pay for it twice too. |
The alternative is riding a 125 for 2 years which severely limits the awesomeness of the experience. Nothing looks Ace with L plates on it.
Look at this this way. You can do A2 now and get on the best bikes possible as soon as possible. After 2 years (or at 24) you can buy yourself a 600cc+ 40kw-70kW bike and (de facto) ride it to the test centre and use it to sit your A tests with the appropriate 'restricting' / 'derestricting' sleight of hand. Or just stay on A2 if it's appropriate for the bikes that you want.
| Rogerborg wrote: | I guess i could just restrict a 400 though. I presumed that most restricter kits were for bigger bikes than that, but apparently not. If I am re-building the bike I might as well restrict it myself while i am at it - can't be that hard  |
Have a look at Kickstart Engineering on eBay and see what's available.
https://stores.ebay.co.uk/kickstart-engineering/Restrictor-Kit-/_i.html?_fsub=4248452017&_sid=1021114207&_trksid=p4634.c0.m322
However, one poster here reckoned his mate's bike dynod at nearer 25kW than 35kW after fitting, which could mean he got sent a new-old-stock 25kW kit or that the seller isn't making any real attempt to get the restriction right.
In most cases, what's going to matter is showing a 'certificate', which is a fictional document that various people may or may not accept as evidence that your bike is restricted.
| Rogerborg wrote: | Enfields don't really do it for me - sorry  |
https://www.enfieldmotorcycles.com/models/img/kits/cafe-racer.jpg
| NKVD fan wrote: | Inb4 G starts eschewing the virtues of 190 bhp for commuting. |
It's about the gearing.
Actually, if Mike wants to say "Stop SPERGING, start RIDING" I may have to unenemy him to agree.
| Slacker24seven wrote: | The fail is strong in this one. |
I strongly suspect that we'll be reading the same thing in 2 years time, only with 600s. ____________________ 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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| wupwup |
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 wupwup Nitrous Nuisance
Joined: 18 Oct 2009 Karma :     
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 Posted: 10:55 - 31 May 2015 Post subject: |
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| Rogerborg wrote: | | wupwup wrote: | i would then have to pay to do both the A2 and the A test. It might be the best option, but it does seem redundant to do a test twice, and pay for it twice too. |
The alternative is riding a 125 for 2 years which severely limits the awesomeness of the experience. Nothing looks Ace with L plates on it.
Look at this this way. You can do A2 now and get on the best bikes possible as soon as possible. After 2 years (or at 24) you can buy yourself a 600cc+ 40kw-70kW bike and (de facto) ride it to the test centre and use it to sit your A tests with the appropriate 'restricting' / 'derestricting' sleight of hand. Or just stay on A2 if it's appropriate for the bikes that you want.
| Rogerborg wrote: | I guess i could just restrict a 400 though. I presumed that most restricter kits were for bigger bikes than that, but apparently not. If I am re-building the bike I might as well restrict it myself while i am at it - can't be that hard  |
Have a look at Kickstart Engineering on eBay and see what's available.
https://stores.ebay.co.uk/kickstart-engineering/Restrictor-Kit-/_i.html?_fsub=4248452017&_sid=1021114207&_trksid=p4634.c0.m322
However, one poster here reckoned his mate's bike dynod at nearer 25kW than 35kW after fitting, which could mean he got sent a new-old-stock 25kW kit or that the seller isn't making any real attempt to get the restriction right.
In most cases, what's going to matter is showing a 'certificate', which is a fictional document that various people may or may not accept as evidence that your bike is restricted.
| Rogerborg wrote: | Enfields don't really do it for me - sorry  |
https://www.enfieldmotorcycles.com/models/img/kits/cafe-racer.jpg
| NKVD fan wrote: | Inb4 G starts eschewing the virtues of 190 bhp for commuting. |
It's about the gearing.
Actually, if Mike wants to say "Stop SPERGING, start RIDING" I may have to unenemy him to agree.
| Slacker24seven wrote: | The fail is strong in this one. |
I strongly suspect that we'll be reading the same thing in 2 years time, only with 600s. |
The A2 test doesn't expire, right? I can stay on that indefinitely? I guess it doesn't automatically upgrade to a full licence after two years though?
As for why I am customising it, its because I want the project as much as I want something cool to ride. it is about the process of making something as much as the end result.
Something like this
https://thebikeshed.cc/2014/11/22/86-motorcycles-cj360-bratrat/
Looks awesome, but also looks ok to ride. And you would hope too beat up looking to get stolen.[/url] |
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| Wednesday Biker |
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 Wednesday Biker Spanner Monkey
Joined: 11 Sep 2014 Karma :  
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 Posted: 11:03 - 31 May 2015 Post subject: |
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https://www.ebay.co.uk/itm/Suzuki-RV-125-L0-VAN-VAN-/221767083675
I get the building thing but I would honestly buy a 125 first and then do the build during the next two years while you are waiting to do the full test.
125's are great for city riding and you will be able to enjoy biking now.
You could do the A2 and stay on that if you were happy not getting a more powerful bike.But no the licence doesn't upgrade automatically, you have to take a second test to be unrestricted. |
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| Dalemac |
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 Dalemac World Chat Champion

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| RhynoCZ |
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 RhynoCZ Super Spammer

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 Posted: 11:10 - 31 May 2015 Post subject: |
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| Wednesday Biker wrote: | https://www.ebay.co.uk/itm/Suzuki-RV-125-L0-VAN-VAN-/221767083675
I get the building thing but I would honestly buy a 125 first and then do the build during the next two years while you are waiting to do the full test.
125's are great for city riding and you will be able to enjoy biking now. |
£2,495.00? Are you out of your mind?!
I paid 2.5x less for the ZXR I've got and the odds are, when I'm gonna decide to sell it, I'm getting my money back. No one will ever buy a used VanVan for £2.5k from you.
Plus, OP probably doesn't even have a helmet and gloves = which is the least minimum of what you should have, no matter what.
There you go: https://www.ebay.co.uk/itm/cg125-/261901463527?pt=LH_DefaultDomain_3&hash=item3cfa8b2fe7 and you can have some fun making it nice again.
Or even this: https://www.ebay.co.uk/itm/Honda-CG-125-BR-K-Cafe-Racer-Style-/291477579044?pt=LH_DefaultDomain_3&hash=item43dd6ae524  ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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Old Thread Alert!
The last post was made 11 years, 40 days ago. Instead of replying here, would creating a new thread be more useful? |
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