classic motorcycle forum

Motorcycle Discussions => Identify these bikes! => Topic started by: bsig on July 21, 2010, 12:39:15 AM

Title: Frame identification
Post by: bsig on July 21, 2010, 12:39:15 AM

Hi,
Can anyone help identify the make of this frame
Any help would be appreciated

(http://i221.photobucket.com/albums/dd13/baldursi/f1.jpg)
(http://i221.photobucket.com/albums/dd13/baldursi/f2.jpg)

Title: Re: Frame identification
Post by: 33d6 on July 21, 2010, 01:05:10 AM

1928-32 BSA 'Sloper'. Slopers were made with 350 ohv, 500 ohv and sidevalve engines but I believe the forged frame top frame member (the backbone) as shown in your photo was common to them all.
Cheers, 

Title: Re: Frame identification
Post by: cardan on July 21, 2010, 02:11:12 AM

The weight of this forging has to be felt to be appreciated! It's an awesome lump of metal. A small correction: 1930 was the first year of the backbone frame for the Sloper; earlier ones had a tubular frame.
The ill-fated P&M Panthette used a similar but much more delicate forged backbone.
Leon

Title: Re: Frame identification
Post by: bsig on July 21, 2010, 07:17:05 PM

Thanks