BATTERED biker David Johnson has given a hospital update on his “very strange” crash during a 131mph lap at the Isle of Man TT.

The Aussie was sent flying by his first ever “tank slapper” – a dreaded phenomenon where the front wheel shakes uncontrollably.

David Johnson was 'lucky' to escape with a fractured collarbone
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David Johnson was ‘lucky’ to escape with a fractured collarboneCredit: Instagram / @davojohnson20

Johnson ruled himself out of the rest of the two-week event
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Johnson ruled himself out of the rest of the two-week eventCredit: Instagram / @davojohnson20
Johnson reckons he was lucky to escape with just a fractured collarbone as he slid off down the middle of the track.

Tank slappers can cause the handlebars to whip against the tank repeatedly and violently.

Johnson’s misfortune came when his bike started vibrating at the K Tree corner in Sunday’s Superbike TT.

Racing for the Platinum Club Racing Kawasaki team, he tumbled off and thudded along the hard surface.