RB 250 Cyclone Gearbox

[servetakid]

So how many BHP's have they been tested to? I guess the RB250 should go to about 30 BHP. I could put a 4 speed box but thought the 5 speed would really push it close to 100MPH with the right combination....?

dont you need about 40 bhp for that unless its a cutdown with fairing ?

It would be interesting to see... One thin is for certain, it wont hang around!

[Speed Demon]

Quite a few people have run 100mph+ lammies in the past - I don't know why it is treated as such a revered figure, it's only 1% scarier than doing 99mph

But I think Shocky's right, stock scooters with full legshields are pretty un-aerodynamic so you need a lot more power - maybe 20% more to do the last 5mph

[Adam_Winstone]

100mph... I was nearly there!



... on a dyno

[Yanker]

Quite a few people have run 100mph+ lammies in the past - I don't know why it is treated as such a revered figure, it's only 1% scarier than doing 99mph

But I think Shocky's right, stock scooters with full legshields are pretty un-aerodynamic so you need a lot more power - maybe 20% more to do the last 5mph

Sticky, Do i remember rightly that your road test of the RB250 (over geared I think u reported at the time) was a couple of MPH short of the 'magical 100' figure?

So perhaps a purpose designed/more recent exhaust and the 5 speed box could make up that little difference for the reverential 100MPH club evangelists?

[oktc123]

Don't be a stupid...what kind of idiot wouldn't ask the price of goods before he purchased? Affordability is the question, not desirability.

I think you'll find there's PLENTY of idiots around!!

The kind of idiot who is going to purchase it regardless of cost! There is only a limited amount of these being produced.
Affordability may be the question for many, desirability will be the question for the few.

Seems the idiots are in the few then!!

No firm purchase price on this yet, so I was informed today.

[Lamaddict]

The RB250 building with a 5 speed box will be road going but not rally going, I'm really aiming to go sprinting here in the US ( I'm an Expat!).

What's the highest BHP the standard 5 Cyclone gearbox has gone up to?

The box seems well built. I guess that partly the design of a Lambretta gearbox area doesn't help the gears as motorbike gears can be the same size and even thinner?

[jonashford]

Ill be using my rb260 with cyclone for rally going. It's going to the euro rally in June taking in 7 different countries there and back

[Yanker]

Ill be using my rb260 with cyclone for rally going. It's going to the euro rally in June taking in 7 different countries there and back

Including Andora, The Vatican, San Morino and Luxembourg, or via Liechenstein? The Rally is in June 'fo sho' but leaving Grimthorpe in May and returning.....?

[gp200ts1]

bit p155 poor on the supply side, yes 150 boxes were delivered to the uk this week but there were only 90 sliding dogs/selectors so although i've paid for my gearbox and optional 5th gear i cant have my gearbox because it aint complete!
very frustrating considering i've paid for it all

[Train Driver]

bit p155 poor on the supply side, yes 150 boxes were delivered to the uk this week but there were only 90 sliding dogs/selectors so although i've paid for my gearbox and optional 5th gear i cant have my gearbox because it aint complete!
very frustrating considering i've paid for it all

I'm rich I'm rich
I've got an extra dog