Just thinking of a few signs .Seats permanently folded down in back of car .(who needs passengers anyway )car parked on the drive garage full of bikes ,washing line full of riding gear .Bet you can think of a few more.

shed/garage/spare room full of bike bits/clothes

DIY not done as too busy riding.
Mud in places that normal people don't have mud in
Content people living inside said house rather than misrible feckers
Pot of minty arse lard laying around

Bike on the dining table, as per the pics in my posting.

Cassette in the kitchen sink. Trail of dried mud up the hall way. A moaning girlfriend complaining about the above..

bike parts every where.

Bottle of Milton under the sink, but no baby.

Every "bag for life" has a variety of dirt/sand/dust from a variety of riding locations in the bottom of it.

Summer arms and legs like a member of the self harming society… 🙂

Riding gear neatly hung up, shoes out to dry.
Normal clothes in messy piles.

If its a SS'ers house there'll be some copius amounts of Singlemalt everytwhere

Mud on the back lane/front path.

Scratches on door frames from peddles bashing.

Lots of empty pasta bags in the bin.

Airing cupboard constantly has at least one pair of battered trainers drying in it

Tyre marks on the bottom of doors. Paint chipped off doorways at handlebar height.

patch of mud in the street outside from bike washing

Bah! Beat me to that one Trailmonkey! Having just moved out of my old flat had to spend most of the weekend cleaning said marks of doors and walls!

Smell of rubber in house…

Ah! had that pre biking.

ermmmm! bike mags in loo.

All the neighbours will tell you the occupant is either a bit weird or a complete tosser.
Unkempt garden
Dirty car.

wow you lot were quick .busy day at work ? lol ! sharki the rubber thing and the certain deer picture ? say no more squire !

Too true, Tyre marks on all the walls. And a garage door that closes behind me very sharpish to hide the collection!!

Kitchen cupboard full of bikes and bike bits with hoover crammed into only available space left. Welsh Dresser draw dedicated to Camelback bits for ride and remaining cupboard full of sprts fuels and bottles. Bladder has its own freezer draw!!
Magazine rack full of bike mags along with spare room full of MTB mags dating back about four years. (never know when you might need to refer to them!!)

on the darkest, wettest, coldest nights of winter for some reason the occupant will appear to be out watering the garden with a head torch on!

30+ years old but no wife/girfriend 😆

Moss covered fence at the "bike washing area"

30+ years old but no wife/girfriend

Speak for yourself mate, I've got loads.

(but don't tell the wife) 😉

I bought a bike just to get rid of mine 😉

Their wireless hubs are called pro2's?! No wait that never happens!

The owner of said house is always on the computer, discussing the "Tell tale signs it's a mtbers house" and other things.

I bought a bike just to get rid of mine

Now, that's a plan..!

Itty bitty tiny bike bits on windowsills.
Bent spoons – masquerading as tyre levers

a calendar without September

skid marks at the bottom of the stairs 😀
tyre scuffs on the wall from leaning bikes up in the corner.

The house number is taken down & replaced with a zip tied race number instead 🙂

The owner has more well used OS maps than road atlas

In the hall way, instead of coats hanging up, there's body armour, helmets,rucksacs and water proof gear.
Camelbac bladders lying on the kitchen table, energy bars in the cupboards, and lube on windowsills.

Old tyre hanging outside by the patio doors.

Tyre just happens to be the right length to loop round the patio door handle to keep it open and stop it swinging about.

He had a dog called "Onza"

Holes in the garden from where learning to back hop/front hop/wheelie has gone wrong

mud in the living room from lack of garden to clean bikes.
DVD collection mainly obscure bike films.
Frames hanging on the wall instead of paintings.
Park Loo roll holder, Hope bottle opener.
Enamel in the bath wearing out from the amount of mud its been subjected to…

errr girl friends running in horror when they see so many bikes in the bedroom?

Helmets hanging from the beams under the back porch roof.

Old helmets filled with flowers and used as hanging baskets too!

Bike in the bath.