Are these normal on new tyres?

by humpyg   July 16, 2011  

Hi all,
I've bought 2 new continental gp4000s tyres, and both of them have 2 small holes/indents in them. I'm just wondering if this is normal or if there's a dodgy batch. I haven't noticed these on previous tyres (different makes).

For pics, please see:
http://www.scuk.co.uk/pic1.jpg
http://www.scuk.co.uk/pic2.jpg

Thanks.

9 user comments

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Never seen them on any Continental's i've bought, but i've never had GP4000's

It could just been the way they are made

Gkam84's picture

posted by Gkam84 [8825 posts]
16th July 2011 - 18:18

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It's a wear indicator. When the lil' hole disappears, time to swap 'em out.

Dave Atkinson's picture

posted by Dave Atkinson [7323 posts]
16th July 2011 - 18:34

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You would think they'd put them on all their tyres?

Never seen them on Ultra sports, although there isn't much to them

Gkam84's picture

posted by Gkam84 [8825 posts]
16th July 2011 - 18:57

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Many thanks Dave, spot on Big Grin
On closer look it says TWI ^. Now I know what that means. I couldn't see any mention in the instructions it came with.

posted by humpyg [15 posts]
16th July 2011 - 18:59

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Dave beat me to the punch! - wear indicators Smile they're great tyres by the way. I've just switched to them.

giff77's picture

posted by giff77 [1049 posts]
16th July 2011 - 19:01

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agree about them being a good tyre.just swopped onto them from gators might be me but they feel to have a bit more grip and a bit faster.

posted by mpt68 [101 posts]
16th July 2011 - 19:22

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You read the instructions for tyres?
Wow - I'm not sure if I've ever made it through a full instruction booklet for ANY bike component.

29er singlespeeds - the way forward, or the way backword?

posted by crimpit [2 posts]
16th July 2011 - 22:44

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crimpit wrote:
You read the instructions for tyres?
Wow - I'm not sure if I've ever made it through a full instruction booklet for ANY bike component.

Ha ha, no I don't, well not normally, but because of these odd holes I looked at the instructions to see if there was any mention of them, and there wasn't. I generally only read instructions when there's an issue with something Smile

posted by humpyg [15 posts]
17th July 2011 - 15:53

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humpyg wrote:
I generally only read instructions when there's an issue with something Smile

Meaning - when you've cross-threaded a pedal or fitted something the wrong way round and it doesn't work Wink

Simon E's picture

posted by Simon E [1946 posts]
18th July 2011 - 11:39

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