Whilst we're on the subject...
I fitted a B44.1 (81t) spur to my B44 the other night as it was the only 1 available, but left it with a 20t pinion (SP V3 6.5).
To save me cursing the world and throwing the car at the cat in disgust at my mechanical incompetence (I'd rather not change the spur again) what pinion should I be running? Only race indoor at york and outdoor at RHR
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