B/S BT002 - why do they go blue?

[Mike748]

I have googled and searched but I've found conflicting info.

I've have these on the 748 and between rides, after sitting in the garage for a week, they go blue where they are scuffed.

Q1: is this normal?
Q2: is this the tyre over heating?

I run 34psi front 38psi rear.

Your comments please

[James Deuce]

It isn't an issue it's just stuff that goes into making tyres seeping through the compound after a heat cycle.

The Zed's Avons go blue over the course of a week too.

[Mike748]

That's what I thought, and I've found similar statements elsewhere.

Funny thing is that the assessor that looked at my bike was using this as evidence that I had been track riding, he told me I had cooked the tyres and was implying that I had dropped it on the track.

I thought he was very funny

[Tony.OK]

The 002's are a road race tyre aren't they?Its the oil in the softer compound rubber that comes to the surface after going through a heat cycle,nothing to do with cooking them,after you sort your claim tell the assesor he's a plonker