BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: Greenfield on 07 Nov, 2021, 15:44

Title: B31/B33 grabrail/rear carrier
Post by: Greenfield on 07 Nov, 2021, 15:44
I'm trying to find a grabrail or rear carrier to fit a B31/B33 plunger with a pillion bum pad. My thoughts are that it could attach to the bolts at the top of the mudguard stays and then somewhere forward of the mudguard hinge. Does anyone have experience of fitting one or have any suggestions of what could be adapted? - And of course I don't want to spend a fortune. Any thoughts would be appreciated.
Cheers
Title: Re: B31/B33 grabrail/rear carrier
Post by: Greenfield on 09 Jul, 2022, 15:20
I found a second hand Renntec carrier, possibly off a Suzuki. I cut the side rails and added new ones to the correct angle and length, plus a cross rail at a carefully measured angle. After a rub down and spray it certainly looks the part. There are literally hundreds of Renntec designs that could surely be adapted for any BSA models.
Title: Re: B31/B33 grabrail/rear carrier
Post by: Rog1 on 10 Jul, 2022, 13:58
Quote from: Greenfield on 09 Jul, 2022, 15:20
I found a second hand Renntec carrier, possibly off a Suzuki. I cut the side rails and added new ones to the correct angle and length, plus a cross rail at a carefully measured angle. After a rub down and spray it certainly looks the part. There are literally hundreds of Renntec designs that could surely be adapted for any BSA models.

Looks great. I've been wondering about doing this for quite some time but images of such a carrier don't seem to exist online. (Until now!) Do you have to unbolt it to get the wheel out or can the rear of the mudguard hinge up far enough that you don't have to?

I did find a small ad from the July 14th 1955 issue of Motorcycling magazine recently; see below. Now I look at it again it seems to be held on by wing nuts.
Title: Re: B31/B33 grabrail/rear carrier
Post by: Greenfield on 10 Jul, 2022, 14:30
Hi Rog, I considered fitting a leg to the lower mudguard bolt as in the old ad, but didn't think it looked very attractive. I fitted the bar across the mudguard instead as the whole carrier looks lighter.
Re rear wheel removal, I did consider this during the design process but haven't had a go since it was fitted. The mudguard still hinges but with the carrier in situ, the rear light will hit the rear of the carrier after about 8cm. The answer would be to either lift the bike to drop the wheel out or undo the two screws from the fixing above the hinge and the whole carrier will then pivot forwards to give full access.
Title: Re: B31/B33 grabrail/rear carrier
Post by: Rog1 on 10 Jul, 2022, 16:37
I agree; the one in the ad isn't very pretty, not least because there's no triangulation and it relies on the tightness of the fixings only, to keep it in place.