RSGP125 BUILD2

May 6, 2013

I swapped the Honda NX4 RS125 tailpiece from my 4 stroke onto its rightful home on the RS125 chassis.


A few NX4 RS125 expansion chambers also turned up on my door this morning, thanks Jesse! I know they’re not matched perfectly to what I will be doing to the GP engine but Rob has shown that they work well enough to get some great power figures from them. It’s also easier to use an RS one to get it going and rideable instead of stuffing around building one that is likely to be crap. I do plan to build a few in the future though…

Tokoroa GP 2013

April 27, 2013

Wow, what an awesome weekend that was! That was my first time visiting Tokoroa and it’s such a fun circuit, although hard on the body into those down hill sections. Huge thanks to the organisers, time keepers, flaggies, and everyone who drank beers with us on Saturday night. Congrats to everyone who raced and those who triumphed. The GP looked fierce, I was nervous before qualifying and I wasn’t even in the race!

I just wanted to point out that there were TEN, yes TEN Honda RS chassis’ at the GP (including a RS250) and not including the GPR diesel which is pretty much a RS. That’s more than a nationals round I believe…

Cheers to Glen for showing me a few improving lines during the track walk and to Cully for letting me pervertedly handle his RSGP125. On that note:

This happened about two weeks ago and I can’t get it off my mind. I dream of building and racing motorcycles (hopefully for a living one day) and this is just the first step forward in many that are required. It is partly why I’m selling of my Datsun gear. This is a NF4 Honda RS125, a GP bike of the days when 2 stroke 125cc bikes were raced on the world stage. I’m unsure about the exact year of this bike but it’ll be approx the mid 1990’s.

The Honda RS125 was a bike that could be purchased directly from Honda by any club racer or enthusiast, they’re the peoples racer of sorts. The later model variants have a revised rear suspension system and a thicker main frame (basically overall better), but that does not detract from how awesome these little bikes are.

The plan: take the engine from my Suzuki GP125 and with some guidance from Team ESE and Tim modify/tune it to produce a chubby power curve (approx 20hp would be fine) to tackle the F4 kart tracks. Then I will squeeze it into the tiny frame and learn to ride a real race bike. I am not planning to sell my Suzuki FXR150, rather build a new exhaust and keep it serviced as a backup if the unthinkable should happen and the ‘stink wheel’ (as they call them) fails. Last week I bought all new fasteners for the frame as the original ones were looking pretty shot. I also woke up to a fairly new set of Dunlop slicks at my door. There are many things I still need to get for this bike but I’m working through them all slowly. Here’s to the beginning of a life of 2 strokes!

RS125 NF4 WHEELS

February 20, 2013

Swoooooon. Some very clean and very good condition NF4 Honda RS125 wheels turned up at my door today complete with alloy disk. 17×2.15″ front, 17×3″ and made of magnesium, they weigh next to nothing. They are likely to make their way onto the 2 stroke in the future but they were a great deal in my eyes so couldn’t let them go.

And whilst I’m on the subject of wheels, my friend Nick has a pair of Enkei Big End Rodders for sale at the moment. 15×7.5 (or there abouts) and 4×100. One has a dent in the lip but holds air fine. Not many of these around so drop your email if you’re interested and I’ll pass it onto him.

NORTON + HONDA RS125 @ Hampton Downs for the Barry Sheene Festival in 2012