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Nice Bull there man!

Nice bike man.
What boost are you running? Do specify a little more about your set-up.

neat work there man!!! the turbo resides between the carb and the engine right??? and at what rpm does it kick in?? i mean like the punch comes in???

A very well designed chopper, though i wouldve wanted to plonk this into the normal chassis and see what the bike can do!!!


COngrats, and best of luck! ill be posting my vote soon!

A wonderfully crafted vehicle!

i wish somebody atleast in this country took a new route and built a fast cafe racer types or a proper racer based on the bullet. Every tom, dick, harry and his uncle builds a chopper. Since this bike is meant to perform, with a rake and trial like this, it wont handle good enough to justify that engine.

^^ as blunt as i was thinking.. but yeah cafe racer.. ill put my money on that.. Ive read some of the drags on bullets take them awfully close to the RDs etc??? is it true?

Awesome modification, great looking bike!

Beautiful chopper built there!

it's a treat to watch them even in pic .. marvelous..

btw how is sound??

awsome work man but refine the engine with custom crome work .it make more beautilful that machine

The RR700 Prostreet Turbo. 119 votes so far. Need more support from XBHians.

XBHPians, thanks a lot for your compliments and support so far. Need more votes to get to the leaderboard...A quick response to some queries / comments raised so far.



@aalop143, considered custom chrome but could not get the right vendor to do it n Chandigarh area. The engine casings are aluminium and the trick is to get a sustainable chrome job that will be maintenance friendly and will not peel off in a year or so. Moreover, I live by the sea (Mumbai) where because of the high salt content, air is very corrosive. As of now, the engine sports a gun metal look wherein, we scrubbed the casings clean with a very tough wirebrush / sandpaper and then laquered it. More maintenance friendly.

@ Joel, To be honest have not yet measured the boost accurately as we do not have the requisite tools for it. It will vary across the power band depending on the volume of exhaust gases. Peak boost has been limited to 5psi by means of a blow off valve. Other than that, set up is a suck through type, with the turbo housed between the engine intake and the carb. Turbo used is, as I mentioned, the IHI RB31 with some home made plumbing. Timing was a bit retarded to compensate for the increased pressure in the cylinder.

@jd666, Thats right, its the suck through set up. We do not have an rpm meter as yet so cannot give you an accurate answer. But my sense is that the turbo kicks in at around 3,500rpm...which given that the bullet engine revs upto only 5-5,500 rpm presents a problem of turbo lag. Its is quite pronounced in the this bike because of the siingle cylinder set up.

When we were dialing up the turbo set up, we consulted with a lot of bike tuners based in the UK and UK, the consensus of which was that the turbo set up on a single cylinder bike using the Bullets antiquated power plant would not be satisfactory. Well, they were right, Ranjit and I are not satisfied because of the turbo lag. So the next phase of the project will be to remove the turbo and super charge the bike. I have already got hold of the Aisin AMR500 super charger (thanks to ebay) and hope to have the super charged version out by the summer. I plan to enjoy the winter riding season on the current set up and ship the bike to Chandigarh before the monsoons.


@ Joel, welcome your opinions on the cafe racers...wish someone would build them. I personally, don't like them so much as I find the riding ergonomics not friendly for long rides. My requirement was to have a bike that would be really comfortable on long rides, handle corners and bends well, and at the same time be useable in Mumbai's traffic conditions. The ergonomics and seating position of this bike were tailormade for me, my height and reach etc...and I am quite happy with it. I took it on a trial spin from Chandigarh to Kasauli and to my mind, it handles pretty well (better than my old Vmax). The engine is only 40 odd horses...which is not much really. My previous two bikes were both 140bhp plus...The turning radius of the RR700 is marginally more than that of the stock bullet and not at all like that of some long rake cruisers, which need two lanes to turn.

Ive voted for you,


Common brothers lets get this boy to the top of the leaderboard yeah,

the link once again Rider Mania 2009: Goa, India | Meet bikers from across the country at Royal Enfield Rider Mania


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Rider Mania 2009: Goa, India | Meet bikers from across the country at Royal Enfield Rider Mania
Nikhil Pereira - thats one of my pics that made it to the listings on the freeze frame comp. . .

when looking at the machine one can easily realize the hard work done.....I have voted for that....all the da best for competition and the ride

I have voted... congrats for the built...