ESE's works engine tuner

[bucketracer]

Derbi 80s are still the best two strokes at the track at this time.

TRRS

NedKelly on his ESE bike dusting Dave D's Derbi 80

[RMS eng]

TRRS

NedKelly on his ESE bike dusting Dave D's Derbi 80

daves son on the other derbi was long gone,cheap shot mate as there are only a few bucket riders with as many wins as dave.

[wobbly]

I didnt realise that you guys were running Derbis in buckets, are they left as 80cc or sleeved down to 50cc or bored up to 100cc.
I would love to do the business on one of those to go up to 100cc and blitz everything in sight.
One engine I have done for a European 50cc champ used a Derbi Senda as a basis, but used a new KTM cylinder.
This made 18 RWHp at 13200 with power out to 14500 and a big fat curve.
Great pic of my fat thumb.

[kel]

I would love to do the business on one of those to go up to 100cc and blitz everything in sight.

That pretty much happens already in 80cc format. Ive heard power figures of 20 to 24hp (the 24hp would seem closer to the truth) for these bikes. Wonder if Dave would like to post his motor details here?

[jasonu]

That pretty much happens already in 80cc format. Ive heard power figures of 20 to 24hp (the 24hp would seem closer to the truth) for these bikes. Wonder if Dave would like to post his motor details here?

Don't forget Daves bikes are super light so don't need mega HP to get along. That is something a lot of others need to address too.

[Yow Ling]

Don't forget Daves bikes are super light so don't need mega HP to get along. That is something a lot of others need to address too.

I guess thats why RS125 have flash wheels and skinny everything else, most guys neglect rolling resistance , worn chains, dragging brake pads, totally ignore fat riders, over filled fueltanks etc.

Go look at 50cc gP bikes for some inspiration, cant see me getting down to 45kg though (or my bike)

[ajturbo]

Don't forget Daves bikes are super light so don't need mega HP to get along. That is something a lot of others need to address too.

whats wrong with my 80kg bike???

[Gigglebutton]

TRRS

NedKelly on his ESE bike dusting Dave D's Derbi 80

I rode Ned's bike at the last meeting for one race when it had the 22hp motor in it. The thing is a fat, so easy to ride. No clutching out of corners. This is the same bike Avalon rides. With 27 fat hp and in the hands of one of the top riders. It's potential is huge

[Ned Kelly]

I rode Ned's bike at the last meeting for one race when it had the 22hp motor in it. The thing is a fat, so easy to ride. No clutching out of corners. This is the same bike Avalon rides. With 27 fat hp and in the hands of one of the top riders. It's potential is huge

Bike is all going back together and has had some proper maintenace. Plastic on all relevant parts all ready for Avalon to ride at Kaitoke. The new engine is being reassemblied this weekend ready for a dyno run early next week. We hope.
Hopefully new porting and chamber well be a good match. We will see. Running out of time yet again.

[bucketracer]

......cheap shot mate.....

Well, on the big track, did Ned dust the Derbi or not.........

daves son on the other derbi was long gone, there are only a few bucket riders with as many wins as dave.

I think at present the front running Derbis at Mt Welly owe a lot of their success to the Diproses ability as top line riders.

But if anyone follows up on Wobblys suggestions then Derbies could become real weapons considering all the after market goodies available for them.

Whatever way you look at it, if you can afford it, a Derbi has got to be a better bet than a 30 year old MB or TF/TS100 or an air cooled GP125 from the 70's.

[jasonu]

whats wrong with my 80kg bike???

It is 10kg too heavy.

[F5 Dave]

. . .But if anyone follows up on Wobblys suggestions then Derbies could become real weapons considering all the after market goodies available for them.

Whatever way you look at it, if you can afford it, a Derbi has got to be a better bet than a 30 year old MB or TF/TS100 or an air cooled GP125 from the 70's.

A KTM barrel would clearly be illegal. The aftermarket parts are a grey area in my mind (been argued here a few times), some of these parts it could be argued are for the road use. But clearly anything marketed as race or performance parts is clearly illegal in the rules.

[kel]

A KTM barrel would clearly be illegal. The aftermarket parts are a grey area in my mind (been argued here a few times), some of these parts it could be argued are for the road use. But clearly anything marketed as race or performance parts is clearly illegal in the rules.

CHAPTER 24
24 ROAD RACING - MINIATURE
24-2-4 Engines must be derived from non-competition motorcycles. Motocross, Road Racing, Enduro and Go Kart motors and transmission parts are not permitted.

So this baby is permitted as its an after market part for a road bike?

Its a 50mm bore! Check out those exhaust ports

[bucketracer]

Yep, buy one of those "Performance Kits" , a few $$$ for the other Bits like reeds, carb and manifold, more $$$ for any of the race exhusts available, slap it all on and your a talented top line Bucket race engine builder I recon.

[kel]

Yep, buy one of those "Performance Kits" , a few $$$ for the other Bits like reeds, carb and manifold, more $$$ for any of the race exhusts available, slap it all on and your a talented top line Bucket race engine builder I recon.

Then you'll definitely need one of these