What group is a CBR250?

Finch-

Im just wonderin because i will be getting some training soon and then hopefully i will pass my test, so I'll want to be upgrading to a faster bike.

I know there is the R and RR models? What is the difference if any?

Thanks

delanest

The CBR250 is class 5. RR are the racing models, Got better performance.

Finch-

Ah crap Looks like ill only be able to get a CBR125 so

Pigeon Reaper

CBR 125 isn't like any other CBR except in name. Ring the insurance companies and find out how much the insurance is on a CBR250. They're a great little bike.

batman_oh

the RR is not a racing model
that a random statement
the R is the mc19, the pre 1990 single disc tri-arm model
the RR is the mc22, twin disc gullarm model
both are 40-45bhp in mint nic

dawballz

I have a 2003 125cc NSR for sale.
Lovely condition(waiting on a new left hand side fairing, after the bike fell over on me and broke the fairing).

It's group 2 insurance with AON. They only accept 125 nsrs as being restricted(group 2) from year 2002 onwards.

If you are interested, pm me.

The CBR125s are apparently crap. The only thing similiar(as someone said) to other CBRs is the name.
They are 4 stroke so a lot slower than the nsr.

Chunkylover

on aon they are a 5, not sure how old you are so it could have a big difference on your insurance, I was paying just over €900 for mine on a prov, they are great as long as you get a decent one from a decent dealer, sadly I didnt, I wont name and shame, lets just say they went by the name of Premier M. ... no thats to obvious, P Motorcylces, but hey other people have had great results from them

if you can stretch to afford the ins, do cause they really can be great

Finch-

Well im 18, on a provisional , 2300 with AON. Thats on a group 2, on a group 3 it went up to 5120 lol so a group 5 is out of the question

Have you considered the TDR125. Put a decent gianelli system on one of those and you get a bike with really good performance. I know they dont look sporty but they are.

Finch-

hmm, a tdr eh? Thats a 2 stroke 125 yeh? Is it group 2 and does it go faster then 75mph? hehe :rolleyes:

2 stroke: yes
group 2: yes
faster than 75 mph, *just* - you might squeeze 80mph

I'm pretty sure it would destroy a cbr 125 performance wise. The engine (on a '00 model anyway) is the same as a TZR which is a s-stroke racer. The cbr 125 also has really skinny tires which I dont like much.

Finch-

Well hopefully ill be gettin an NSR125 (Factroy restricted) within the next couple of weeks so ill see how that works out. If not ill stick with my nsr 75

Pigeon Reaper

Enjoy. I'd personally choose the NSR 125 over the CBR 125.

babybundy

i'd check that with the insurance comp. before buying i'd go varadaro 125 instead of the tdr better engine and faster and group 2

What speed do you get out of a varadero 125? On pure paper a derestriced TDR would have about 9hp more than the varadero. In my experience the derestriction only made it accelerate faster.

batman_oh

varadero is a whole ass load slower than the tdr
i know a guy who owned both a varadero and an nsr75 and he said the 75 is quicker and faster, so go figure
varadero is as heavy as a 1000 with 15bhp to try push it
the nsr when derestricted wud be fun(and its very easy to do) and the best choice of the mentioned bikes for keeping u entertained

dawballz

babybundy wrote:

i'd check that with the insurance comp. before buying i'd go varadaro 125 instead of the tdr better engine and faster and group 2

The TDR and the (restricted) NSR125 are both group 2.

babybundy

i've had both nsr and varadaro and driven a tdr and the varadaro is a faster bike it might have slower take off but i got 83 mph with two up the nsr got 140 kph but only one up and down slight hill . the varadaro is heavier but has a 13 bhp engine and its 4 stroke so its better for distance with alot of distance the nsr tends to blow a hole in the piston i done it several times i just didn't like the tdr its to light whereas the varadaro sticks to the road i scrapped the passenger pegs of the ground

bugs

babybundy wrote:

i've had both nsr and varadaro and driven a tdr and the varadaro is a faster bike it might have slower take off but i got 83 mph with two up

83 eh, power to weight would disagree with you in a big way, especially with 2 people on it. Either you're telling porkies or your speedo is heavily knackered.

babybundy wrote:

the nsr got 140 kph but only one up and down slight hill . the varadaro is heavier but has a 13 bhp engine and its 4 stroke so its better for distance with alot of distance the nsr tends to blow a hole in the piston i done it several times

So it managed 140kph, yet you claim it blew a hole in the piston 'several times', can't imagine that was a very efficiently running bike.
Having owned the nsr for 2 years in the past.... it will put out ~95-100mph on a long stretch of road when fully warmed up, its not a litre bike, its not designed for top end.
They require little more than being fed fully syn 2 stroke, probably the least problematic 2 stroke sports replica released on the market.
I don't think i've ever heard of any 2 stroke blowing a hole in the piston, how in christs name does that happen? Scaring the cylinder, seizing in the cylinder, yes, but blowing a hole in the piston,.. were you mixing explosives in with your oil.....were you putting in oil at all?

babybundy wrote:

i just didn't like the tdr its to light whereas the varadaro sticks to the road i scrapped the passenger pegs of the ground

To the best of my knowledge its spelt 'Varadero', and i must say, your claim of scraping the pegs off the ground concretes the nonsense above.

Pigeon Reaper

I've scraped the pegs on the Varadero 125. It's possible on almost any bike with pegs. the 125 is nothing like the bigger brother. The bike looks heavy due to the plastic but I found it lighter than any 250 I ever rode on despite it looking larger. The NSR has good acceleration up to about 80kph after which it runs out of steam. The piston may not have blown a hole in it but it could have been used descriptively. If the engine pings alot or the reed valves aren't working I could well imagine some exciting stuff happening.
The gearing on the NSR may have been changed to give greater acceleration but a lower top speed.

babybundy

the reason i blew a hole in it the first time wasn't far off mixing explosives it was pure octaine where as the speed with the varadero it was right cause it was a bike run and a buddy was beside me on a 750 and he said it was right i'll see if any friends are logged on this site and they'll back up wat i've said

Pigeon Reaper

Never heard of someone blowing a hole in a piston from using petrol alone. What else did you use to boost the octane? Nitroglycerine? I've always been wary of octane boosters but now I know they won't be getting near my engines. Did you manage to hold onto the bike when the piston went? I remember blowing a hole in my engine block and just about managing to stay on the thing as it spat oil all over the road whilst exercising a piston and con rod it didn't like anymore.

Pigeon Reaper

double posts! I hate them.

babybundy

thats the thing it just lost power and stopped i was haunted cause i was on a duel carrageway

Pigeon Reaper

Bit of an anti-climax. If an engine is going to give up the ghost I prefer it to so some spectacular fireworks and have safe ending. At least it's entertaining fro other traffic and they tend to give you some room incase the bike explodes.

babybundy

ya but cheaper to repair just think no crank case to replace

Hotblack Desiato

bugs wrote:

I don't think i've ever heard of any 2 stroke blowing a hole in the piston, how in christs name does that happen?

Usually referred to as burning a hole in the piston.
Used to be common enough on the older 2-strokes when they were tuned, but can happen on 4 strokes with dodgy turbo or nitrous installations.

If the engine is running too lean, run for too long on wide open throttle, or has the wrong spark plug fitted, it can start to 'detonate' in other words the petrol mixture doesn't burn smoothly but explodes. (Knocking is similar but less severe.) This causes a big build up of heat within the cylinder enough to melt the piston crown within seconds - it's only made out of aluminium and melts easily.

Happened to me 10 years ago when I was doing a top speed run on the M4 (don't get too exicited, it had just hit 70 when it went, took a few miles to build up to that speed!)

I still have that piston somewhere, might try to dig it out for a pic

KTRIC

ninja900,

I know this is off topic, just regarding your sig. For sometime while in Germany I actually thought Ausfart was a big town somewhere

babybundy

same here i've that piston somewhere what where you on