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Title: Exhaust Sizes
Post by: A10 JWO on 08 Jun, 2018, 17:42

I have been looking at adverts for exhausts for Bantams. The adverts talk about small bore ? I have a 1963 D7, what size would it have if it was standard. Thanks.

Title: Re: Exhaust Sizes
Post by: JulianS on 08 Jun, 2018, 18:12

The large bore exhaust were on the D14 and B175 - 1 3/4 inch.

Small bore up to D10 - 1 3/8 inch.

Title: Re: Exhaust Sizes
Post by: A10 JWO on 09 Jun, 2018, 14:34

Thanks Julian, all is now clear.

BSA Owners' Club Workshop Discussions

The BSA Workshop => Bantam - pre 1973 => Topic started by: A10 JWO on 08 Jun, 2018, 17:42