What is the most expensive modification you have made?

[Beehive Bedlam]

For me it is the retrofitlab projector kit cost me €312 all in with 80mm smd led angle eyes and postage.

Not cheap by any means but they do come with a two year warranty which is more than the chinky HID kits on ebay plus the standard lights on my bike FZS 600 box eye are dire which justified the cost.

I hope to have my new projectors fitted my next weekend off work.

[Fin]

Welding sprocket

[wristjob]

smacking it into a wall?

[wristjob]

next week look in workshop for the fire damaged fazer thread.

[notbike]

Exhaust around £350

[-Matt-]

Getting the wheels powdercoated years ago (ride in-ride out service). If I removed them myself now and took them somewhere else it wouldn't cost even half as much.

In which case the most expensive thing would be adding carbon fibre parts.

I regret both.

[recman]

Fair play to bodyguard for doubling the value of the bike.

[Beehive Bedlam]

[stevo as b4]

For my 125 it's the same as Meef. My new custom pipe will be around £350, but also very sexual too!

I suppose having a 200cc top end, welded, machined and re-plated as well as having it ported and the head skimmed was the most expensive mod at £460, but not sure when I'll be fitting it yet, as it won't work with my new pipe, and 200cc pipes are like rocking horse shit.

Oops, forgot the £470 I dropped on a Wilbers shock. Best mod yet! Or was it the £180 for radial sticky road tyres?

[ADSrox0r]

Remus titanium cans £800, PC-V 300 odd quid. Worth it? Nah, probably not but it's a hobby and keeps me in the garage with the excuse, "I'm just nipping out to sort the...er...thing, that needs doing on the bike luv"
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Current bikes: '08 VFR 800 VTEC(yo) , '07 ZZR1400 Winter hack: '95 Aprilia 650 Pegaso Currently lusting after: RC30

[gorillaonabik...]

I had a race-prepped, brand new Ducati 748. Ducati performance took off all the stuff that added weight, prepped it for the track and I had matching leathers with a Haga lid. I thought I looked the dogs and I would take Fogarty if only he was man enough to race me.

On my first ever track day on it, dropped it coming out of Charlies (Cadwell) and when I finally stopped bouncing, saw it sort of explode. There was actually a little mushroom cloud over the bike.

Since then, the most I've done is add a 12v charger and a screen.
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FZR400 (blown engine), ZXR750 (blown engine), ZX6R (accident), CBR600 which had engine issues after which I learned to change gear..., CBR900, CBR924 (stolen), CB600, CB1300 (everything blew up), BMW K1300GT (written off, hit from rear while stationary), Bandit 1250 for a couple of months, Triumph Sprint ST 1050 (nicked) and somewhere in there, I wrote off a Ducati 748 at Cadwell.

[karoshi]

£300 on an ebay engine to replace one I blew up

£250 on parts and machining to swap a ZZR1100 rear end (swingarm, wheel, brake, shock, & sprockets) onto my GPz900

Currently going through upgrading to a USD front end on my KLR that'll have cost me about £400 in parts & machining by the time it's done, £160 of that'll be just for the 320mm brake disc & caliper bracket
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Well, I've wrestled with reality for 35 years, Doctor, and I'm happy to state I finally won out over it. - Elwood P. Dowd

[trevor saxe-coburg-gotha]

[RhynoCZ]

Went from used tyres to brand new ones, because the motorcycles I've owned were getting more and more faster.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[Polarbear]

[chickenstrip]

R1 fork conversion. And it wasn't even the forks themselves that made it expensive, as they came from eBay, complete with K Tech upgrade at about £250. But then there was the FZ8 top yoke, bottom yoke conversion, R1 front mudguard, taper roller steering bearings, ride height adjusters, custom length braided brake lines, handlebar risers. Added up to a fair bit, although still not silly money, and well worth it for the transformation in handling.
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Chickenystripgeezer's Biking Life (Latest update 19/10/18) Belgium, France, Italy, Austria tour 2016 Picos de Europa, Pyrenees and French Alps tour 2017 Scotland Trip 1, now with BONUS FEATURE edit, 5/10/19, on page 2 Scotland Trip 2 Luxembourg, Black Forest, Switzerland, Vosges Trip 2017
THERE'S MILLIONS OF CHICKENSTRIPS OUT THERE!

[M.C]

There's a reason why I don't do mods Think I'm at £400+ in accident damage on this bike. I guess stuff like renthal bars & a tail tidy count, but that was replacing bent/broken bits. Only true mod would be a £10 o2 sensor eliminator, probably the best £10 I've spent...

[chickenstrip]

[redeem ouzzer]

[The Shaggy D.A.]

Probably about £200's worth of extra stuff when I bought the Royal Enfield Classic Bullet 500 new - I had them change the CDI/carb/exhaust/sprocket and add a couple of chrome bits before I picked it up.
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Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5

[grr666]

I've not really dipped my toe in Bike modding yet. It all seems sooooo expensive for such little bits and pieces.
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Currently enjoying products from Ford, Mazda and Yamaha
Ste wrote: Avatars are fine, it's signatures that need turning off.

[thx1138]

Add up all the little mods on my dirt bike - probably be that.

One off mod, probably a rear hugger on my old Hornet.

[-Monty-]

£175 for stainless downpipes on the Pan. Not really a modification though, as the old ones had rotted through.
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Present: [Kawasaki ZX7r][Suzuki DRZ 400s]
Past: [Honda PCX 125] [Yamaha RXS 100] [Honda CB 500] [Triumph Speed Four] [Honda ST1100 Pan European - Po-Po Edition]

[Supermoto_Fan]

£380 on the akrapovic system
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Yamaha MT-09 - Triple powerrrr

[thx1138]

I wonder who has done the most expensive mod, in proportion to the value of their bike?