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Discussion Starter · #1 ·
Well its that time of year again! sold the CBR last week so I could bring the bike out my bedroom...right here goes

The plan:
1988 Gsxr 750 frame
Bandit 1200 motor
Bandit carbs with foam filters
stubby tail
as short of a wheelbase as possible
as light as possible (budget dependant)
As simple as possible

Ok so the pictures...








 

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V four honda whore
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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

Take it back to bedroom...
 

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Discussion Starter · #4 ·
Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

was hard enough getting it down the stairs as a rolling chassis so I aint bringing it down when its 100kg heavier!
 

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Discussion Starter · #6 ·
ok update time...
Not got much done on the bike sadly as very busy working atm...Did try to cut the rest of the stock subframe off today but my angle grinder bit the dust and died half way through final grinding session...damnit!

Im thinking ahead to my subframe too...my original intention was to use square tubing with adaptors in the end so I can bolt them to the frame with rose joints...now I can find the adapters for round tubing (see example below) but none for 7/8ths/20mm ID square tube...any suggestions? alternatives or different methods of mounting the subframe?

http://www.ebay.co.uk/itm/182320527543?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT
 

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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

caferacerdan; said:
Im thinking ahead to my subframe too...my original intention was to use square tubing with adaptors in the end so I can bolt them to the frame with rose joints...now I can find the adapters for round tubing (see example below) but none for 7/8ths/20mm ID square tube...any suggestions? alternatives or different methods of mounting the subframe?

http://www.ebay.co.uk/itm/1823205275...:MEBIDX:IT
Use round tube?
 

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V four honda whore
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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

get bigger one, and machine end square
 

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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

An M10 nut is 19mm across the corners, weld them in the end of the square tube? or get flanged nuts, put them in the end of the tube and weld the flange to the tube, with the hex part inside.
 

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Discussion Starter · #10 ·
Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

Use round tube?
An M10 nut is 19mm across the corners, weld them in the end of the square tube? or get flanged nuts, put them in the end of the tube and weld the flange to the tube, with the hex part inside.
get bigger one, and machine end square
welding round tube is more difficult (suppose it would mean I would get more practice in!) but just think square tube will look better with the square frame of the gsxr
 

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Discussion Starter · #11 ·
Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

An M10 nut is 19mm across the corners, weld them in the end of the square tube? or get flanged nuts, put them in the end of the tube and weld the flange to the tube, with the hex part inside.
didnt know whether that would be structurally strong enough or not! new to building bolt on subframes!
 

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Remi's Dad
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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

welding round tube is more difficult (suppose it would mean I would get more practice in!) but just think square tube will look better with the square frame of the gsxr
learn to love round tube...




i don't remember the last time i used square tube on a bike, always prefer round. Even modern sport bikes.
 

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V four honda whore
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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

that's because people are programmed to like round shapes. little kids, puppies, kittens, asses, boobs. they are all round
 

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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

As a Ducati lover, round-tube is where my heart is. Square tube subframe = shitty 90s CBR600F.
 

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V four honda whore
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Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

Shitty or not but f2-f3 has round tube subframes
 
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Discussion Starter · #16 ·
Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

Shitty or not but f2-f3 has round tube subframes
^ hes right ya'know!

might just buy all the parts for both square and round and see what i prefer on the mockup!
 

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Discussion Starter · #17 ·
Bit more work done today, got the last of the rear wheel spacers and frame appears straight so...
Cut off rest of the original subby


needed to make a contraption to keep all my new subframe tabs inline vertically and horizontally so came up with this...


 

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Discussion Starter · #20 ·
Re: CafeRacerDans OldSkool Fighter 7/12 Discussion

Well gonna just buy loads of of tubing and see what takes my fancy...still not bought my welder yet...procrastinating as they are expensive as fuck!

found these gems to use if i chose square in the end.
 
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