This service is available if needed - or maybe it has been used Huddersfield Tyres & Vehicle Services Mileage Correction as for value impact of 5k miles - maybe £250 to £500 tops On a very new low mile bike maybe higher, but on a bike the age of your one very little As you say its more the 'is the rest of this bike 100%' which is prob. nagging - maybe double check frame and engine number and HPI check it before visiting the dealer / breaker as the more info. you have in advance the better
I would also add that when you come to sell the bike any mileage '' discrepancy '' may simply put buyers off totally or at least lower the price a lot, when i purchased my last bike i sat at the sellers dinning room table for about 20 mins going over all the paperwork and every old MOT, checking the mileage, vin numbers the lot, i even made a cheeky call to some of the service stamp dealers to make sure they were genuine...... 20 mins for future peace of mind seems like a good deal to me.
Chances are the bike has been damaged and sold off to a "Breakers", they then have fitted parts from their stock which prob included another dash , they then sold it off at the mileage they thought they bought it in with not noticing the higher mileage. But they should have stamped on the receipt /service book "Mileage not guaranteed" and a sticker HAS to be stuck somewhere in plain view ( I think its the law!)
Update, new master cylinder obtained FOC. I was referred to the sml print ( mileage not guaranteed ) anyhow I like the bike and it was a bargain so I'm putting it out of my mind and just getting on with it. Thanks for all the words of caution and support. We live and learn as they say !
I had a similar "brown trouser" moment a few years ago with my CBR600F following an MOT. I had a letter from the DVLA out of the blue telling me that it had been noted that the frame number on the bike did not match the DVLA or V5 documentation. The bike was 7 years old so had obviously been MOT'd in the past (always by the same place as it happens), but for some reason they had been extra vigilant that time and noted the frame/V5 error. Obviously I was seriously worried that I'd been riding around on a dodgy bike for the past 7 years, but further investigation seemed to point at the fact that it was a typo by whoever completed the original registration documents (DK Motorcycles in Stoke). A simple phone call to the DVLA and a form to fill out and I got a new V5 in the post with the correct matching details. As it happens a mate of mine who bought a bike from DK also got a shock as a result of their cock ups, when he was pulled over and told that the number plate he had on his bike was a clone. Turns out DK had sent 2 different bikes out of the showroom with the same number plate. Muppets!