2000 CR125 6 speed box

[JigyJig]

Hi

I was wondering if anybodys put a six speed box in there CR125

My CR is hardly ridden since new and I was comparing my dyno charts to 2001 and 2002 CR's and its a really strong motor.And my suspension is set up perfect for me so I thought I may just put a six speed box init instead of buying a new one.Any body any thoughts on this? (I do the odd cross country race so thought the extra gear would be handy)

thanks

Nick

 

[EricGorr]

You can buy all the individual parts from the 1997 model, I believe that was the last year of the 6-speed. You can't just buy an extra gear, the tranny is completely different with regards to the spacing and shift drum. Figure on spending about $1000 to do the conversion.

 

[JigyJig]

I have a friend in the business and he has quoted $1500 AUD (about $750 US)

What I was wondering, is was it worth it?

Thanks Again

Nick

 

[marcusgunby]

The Cr six speed wasnt that reliable as thats the real reason they went to a 5 speed so choose wisely.

 

[davearm]

6 speed

i also race shifter karts, and we have been running cr125's. Honda still makes a cr125 with a 6speed tranny, destined for karting use. Not sure however about the cost of the tranny upgrade, but there are newer model cr125 motors with the extra gear.

 

[Pantera]

Originally posted by marcusgunby
The Cr six speed wasnt that reliable as thats the real reason they went to a 5 speed so choose wisely.

I cant remember ever seeing a pre 1997 CR125 on the side of the track because of a blown trans.

 

[marcusgunby]

I can only say i know of more than a few that have broke 1st gear as its part of the shaft(instead of a separate grear) and some that have broke the output shaft at the sproket-the shaft shears off and you are left with a sprocket in your hand with a bit of shaft attached-not cheap the shaft alone comes to over $100 and with some gears and bearings we are talking alot of money.I had a 93 Cr125 which was stolen and only a few months old and when i stipped the engine after it was recovered more than 1 gear was badly chipped-i dont think it was the thieves as they hardly rode it as they ran it on neat petrol and it didnt go far:mad:

Its not a widespread problem and Honda generally would warranty them if they wernt morew than 6 months old but it was a big enough problem IMO to change it to a 5 speed-not many riders liked the 5 speed and yet they havnt gone back.

 

[NO HAND]

Originally posted by Pantera
I cant remember ever seeing a pre 1997 CR125 on the side of the track because of a blown trans.

You obviously didn't see me:eek: I blew third and fourth on a 1995.

 

[grsh]

i took a nasty spill on a step up due to a broken third gear.
:scream:

 

[JigyJig]

I raced a 92 CR125 for 5 years, it was a real quick one and never had a gearbox prob once.

It was still quick against 97 125's I also had an Ohlins shock and Marzochi Forks on it.

Unfortunately in 97 just about everything else about the bike died, but I had a great run till then.

When I get a really quick bike I'm always reluctant to sell them hence the 6 speed gearbox question as the 5 speed is the only thing I dont like about the bike.

And its $3500 AUD cheaper than getting a TM125 with Ohlins forks.

Nick

 

[capt hookleg]

Check the classified adds in Cycle News, for a long time there was a add in there that was selling new cr125 engines with 6 speed trannys.

 

[EricGorr]

Capt. Hookleg, you're referring to Williamson Honda. Honda makes available kit engines. In other words you can order an engine by individual parts and specify a mixture of the best performaing Honda parts from various years. Thats what the shifter kart guys do. I thin that price of $1600 is unassembled. Last year I assembled a CR80 kit motor and thought I'd go blind looking at parts drawings on Service Honda's site while trying to match all these parts in order. I never liked puzzles as a kid anyways:scream: