Honda MBX 50

Josh|RD125LC · World Chat Champion Joined: 08 Sep 2004 Karma :

I know it might sound stupid, but I haven't actually seen a Honda MBX 50 on the road. I have one and i feel as if I'm the only one who has one! Its a nice bike. Not very good looking nor fast. Its a bit on the slow side for me. It sounds nice though and many people mistake it for a 125.

I will be upgrading to a 125 next year and I was wondering if the MBX125 is good. Does anyone know much about these? Any info would be much appreiciated. Thumbs Up

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

I used to have an MT50 (as seen in avatar) which is an older trial version of the MBX. I've seen a few MT's and MTX's on the road, though they were very rare to see. MBX125's will do about 85-90, Performance Bikes and look very like an AR/RD. Performance Bikes done a test and got the MBX to go 94 with a bit of tuning.

What speed does the MBX50 do? My MT50 was a push for anything over 35.

steve09 · Scooby Slapper Joined: 25 Jul 2004 Karma :

thewy do exsist ive seen a few for sale.
i think there imports.
it depends greatly on wht u get i know one mbx50 has a type of cylinder called the G23 or somthing like that anyway thts the one you dont want. it dose about 40mph the later version has a differnt cylinder and will touch 55(thats with the exhust derestricted and i think a new CDI).
there great bikes similar to the MB-5 in the way that they take a 6speed Cr80 gearbox almost as a bolt on or u can fit a 80lump straght in there..
they also aparntly take the H100 lump how ever im not sure if this is true.
have a look on www.50cc.nl for more info

Josh|RD125LC · World Chat Champion Joined: 08 Sep 2004 Karma :

Well, the speeds are like your MT's. Anything over 35 on a flat is a push. But I have managed to do 45mph down a hill, but it usually does 40. I would like a bit more speed. I would quite happily like to cruise at 45. But its alright for a learner. When I turn 17, I want to get a Yam RD125LC, so speed won't be a problem then.

Steve09, I look at the 50cc.nl site quite often. I have got a lot of advice off that site before. As you said, it is restricted mainly in the cylinders and the CDI. Also the exhaust but I'm looking to get a micron chrome exhaust so hopefully that won't be restricted.

steve09 · Scooby Slapper Joined: 25 Jul 2004 Karma :

nice pipe good sound..
are you buying it from 50cc.nl??
happy riding hope i helped..
cheers

Josh|RD125LC · World Chat Champion Joined: 08 Sep 2004 Karma :

I think the pipe I have on it at the moment is a micron, because in my manual, the pipe on the MBX looks different to mine. But the pipe I have at the minute sounds sweet. It doesn't sound like a 50, more like a 125, thats why a lot of people think it is a 125.

No, i'm not buying the chrome pipe off the site, its on Ebay at the moment and I'm watching it closely. I really want it!

Josh|RD125LC · World Chat Champion Joined: 08 Sep 2004 Karma :

This is the pipe:

https://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=10460&item=7922135431&rd=1

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

Before you worry about performance parts it would be a better investment slotting in (providing it's the same frame as the MT) a H100 engine. Wink

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

The MBX50 is quite an old bike now, and there were never vaste numbers of them around as Honda did not sell them for long (they replaced them with the MT5, which I think the MBX50 / MTX50 was meant to replace). Think they stopped selling them in the UK in 1986. Both the MT5 and the MBX50 were renowned for being quite slow and difficult to derestrict (pity as the MBX50 was one of the best looking 50s of the time). The MBX50 has a very different frame from the MT5.

Think the H100 engine should go in quite easily. The MBX80 engine would be difficult as it is liquid cooled and so you would need to mount the radiator, etc. You could try and source an MBX80 front end and gain twin disks Very Happy

.

The MBX125 was a nice enough bike (I had one). The speedo ends at 90mph, and as standard they will do about 70~75mph (restricted). Mine had an Allspeed exhaust and S&B filter and would indicate just past where 90 was on the clocks. Power started at 6500 and ended at 9500. However again they are an old bike now, and any you find is likely to have had 18+ years of learner abuse.

All the best

Keith
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