Cheapest and most effective mod youve made

Hands down this has to be getting my suspension properly set up yesterday by someone who knows what they're doing.  As well as adjusting for my weight the rebound damping now no longer fires me out of the saddle on bumpy roads and the whole bike is much more stable, planted and comfortable.  Goes round corners properly without the front digging in.  All feels nicely balanced. 

Took about 15 minutes and cost me £30 (about $50?)

I have a whole new bike for peanuts.

This got me wondering on a cost/benefit scale what has really worked for you?

That's a tough question. Because the first mod I've made to every VFR I've owned has been a Givi D200S Touring Windscreen, that would be my nomination.

Added comfort, reduced stress, drier in rain, warmer in cold and better gas milage.

$75 for my first, free for my most recent... Thanks Lobster!

Symtec heated grips bar none.

i ditched a nagging girl , yes she was hot,., i am deaf and  by god,  she STILL gave me an ear ache.  :blink:

 that shaved 110 lbs off the back of the bike. it handles much better now,.

and i am told its MUCH quieter  too.  :fing02:

It's  a  toss up  between  lowering  the  front   and  raising  the  rear  with  washers.

Or  Piper Cross  Air filter  and  raising  the  gas tank 5mm .

Both  made  a  big  difference  for  a little money ..

$17 on a throttle lock.  Easily the best, body saving comfort device I've ever installed.

6+ years later and it's still working like a dream.

LOUD horns.  One timely blast and they paid for themselves many times over.

Dunno. Probably disabling the O2 sensors, and taking out the throttle slack; cost me nothing (stole the resistors from #2Son's electronics box). But the very first mod I can remember doing was fitting a FactoryPro Evo-Star shifter kit, before the transmission developed the crappiness every Honda I've owned has had.

Without a doubt, creating my own bike rack.  Been everywhere from Southern WV to the Canadian Border and in between hitting up great riding centers and great roads to get there.

Cheapest: New grips

Best: Suspension

Best & Cheapest Mod: Definitely disabling the O2 sensors on my 6th Gen - my previous bike was a 4th gen.

Best & Most Expensive Mod: Factory Hard Bags

Drinking a red bull before I ride :-)

redbull ? at 3 bucks a can. ???

 sorry ,, 4 tacos for 3 bucks adds 1/2 HP and keeps drives from following to close.. :goofy:

Drinking a red bull before I ride :-)

Cramp Buster @ $10 makes a huge difference on long rides.

Delkevic exhaust, awesome sound, smoother ride.

Changing fork oil.

Drinking a red bull before I ride :-)

redbull ? at 3 bucks a can. ???

 sorry ,, 4 tacos for 3 bucks adds 1/2 HP and keeps drives from following to close.. :goofy:

I like your thinking.

I guess the best return on invest has been my Voltmeter...     $3 on ebay, I installed in the gauge surround...   haven't had one in my other VFR's but I have suffered a couple of R/R failures, and now I look at it all the time!

New set of levers from ebay for less than €30. Look good, as long as standard, adjustable and comfy. 

VFRness for €50 (or thereabouts), stops worries about the electrical system which is a big deal considering without the electrics it just ain't running.