Question for Bike Mechanics

[Daniel Nathan]

What’s the most common mistake you see home mechanics make?

 

[Vapin' Joe]

Running the chain over the tag on the derailleur cage instead of inside it.

Not that I've ever done it

 

[Drago]

Taking it to most bike mechanics.

 

[Webbo2]

Spinning the front wheel and pulling the back brake on when testing the brakes.

 

[Punkawallah]

Locking the cable down at the rear derailleur with the cable outer snagged on a cable stop is a favourite of mine.

 

[C R]

Locking the cable down at the rear derailleur with the cable outer snagged on a cable stop is a favourite of mine.

I've never done that, specially not with the rear brake

 

[Yellow Saddle]

Trying to figure out why a headset, complete with crown race, doesn't fit on a modern carbon fork. No matter how many tapered headsets you buy, the supplied race does not fit the fork.

 

[raleighnut]

Brake blocks fitted backwards/upside down

 

[Webbo2]

Not putting a one of those metal sleevy things on a cable outer of some cantilever brakes. Not great on a cross bike.

 

[Paulus]

Not putting a one of those metal sleevy things on a cable outer of some cantilever brakes. Not great on a cross bike.

Do you mean a Ferrule?