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My 399 lb VFR848


gig

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My winter project was a front delink that turned into a delink and 848 rear conversion. I had help from the forum, Rush, Mohawk, Keef, Mellow, and others, Thank you!

Below is the "VFR 848" build   

 

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I have notes of exact weights but will give it my best recollection for this. -9.5lb for front and rear delink

 

Removed

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Replaced

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CBRF4I front wheel, front calipers, master, new VTR lowers. Lowers need a bit of grinding and TI washers to center calipers

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Kit from Extremecreations they did "Keef's 1098 conversion, shim and spacer worked the same for 848 eccentric 

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The 848 brake hanger is open vs 1098, so milled flat for clearance and used TI domed bolts to secure. The brembo master i had to open up the VFR holes a bit and use smaller 5m TI bolt and nut to secure. Used a pressure switch which cleaned up the right peg.

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Routed the 33mm long brake line through the Swing arm, enlarged the rear hole in swingarm   

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The first wheel and swingarm I bought off ebay were bent which was a nightmare to return a get credit for, found a new wheel for $600. ended up sourcing all of the parts needed separately

Sprocket on a 848 is a 525, so a 520 conversion is required, got 520 vfr front, 848 rear from sprocket center, chain was almost new

 

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Front brake line length if needed is 28 and 31 inch, i know because i had to reorder, i got the bend on the top and bottom the same, 20 degrees i think, comes with 90" bend for a CBR, ask me how i know that 

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I think thats it. i checked offsets from a set point on swingarm was between .58mm straight wheel to 1.78mm measured with bent wheel unknowingly. Within spec of 2mm variance.  

 

Total cost was $500 for delink $1,500 for 848 mod.

 

Weight savings from stock; 

Wheel -3.2lbs The marchesini wheel. FYI Brembo/enki make the same wheel the bent one i got, it was heavier by more then 1lbs 

Sprocket w/carirer etc.. 5 lbs 

Rear Rotor 2lbs

Delink front and rear 9.5lbs

I had light weight rotor and sprocket already, so saved  -16.5 lbs, added to my already 42 lbs = 58.5 - 458 stock dry = 399.5 lbs

 

Yes i can feel a difference, all unsprung and rotation weight loss. If i think of anything else i will post.

 

Thanks again for all the help from the forum, as always !!

 

Gig 

 

sorry for the repeditive pics, i tryed to switch pics it adds them but wont let me delete

 

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  • Member Contributer

Outstanding job, well done.

 

Envious of the skills.  :beer:

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12 hours ago, shaynus said:

On a side note, what rear hugger is that?

 

Thank you all very much, I could not wait to show it to you guys. I had wanted to do a 17 5.5 conversion for years, but any that had been done were large axle 6.0 wheels. Tight twisties is what i ride for, so realy wanted to do a 17 5.5 conversion, but didn't know if i would be able to do it, or get the wife's blessing to spend the $ necessary to try. I researched and found that a couple of 848 riders had done a 1098 conversion so knew it was possible, but could not get a confirmation on the offset. So, Happy, and Relieved, it worked out. 

 

The Hugger is Harris performance hugger that i cut up pretty well to open up the look, but even with that and not being connected on the outside of the swingarm, it is very stable. 

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20 hours ago, SEBSPEED said:

Looks good, front wheel next? 

Its an F4I front wheel, but a forged 5 spoke F4I Marchesini to match would be nice. I guess i should start stashing $ now, for next winters projects?? Thanks Seb??

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1st- I guess that’ll do. :wink:

2nd- Your workbench is too dang clean.

3rd- Hopefully we’ll get to stand around and gawk at it in about a month.

 

Awesome job!

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When I had spent months researching and buying parts, and then had $1,000 worth of bent ebay parts on the bike, getting to TMAC with a finished project got me through. 

I would not miss it. 

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Well done, Griff!

Best looking 5th gen out there just got even better!

You'll leave me in the dust in the twisties on my porker :blush:

:beer:

:wheel:

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  • 2 weeks later...
  • Member Contributer

Very very nice. I have a very similarly modded VFR. I was thinking where is the big bore kit then realized the 848 designates the rear hub mod.

Love this bike.

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  • gig changed the title to My 399 lb VFR848
  • Member Contributer

Gig, +1 for all the positive comments above!

 

Did you get a number for the weight saved by the F4i front wheel?

 

Does the F4i front wheel drop right in, or need spacers/adapters?

 

Which headers do you have on that beautiful bike? They appear to be very well-finished stainless.

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