Several of you have asked about reservoirs fitting the Sierra BMC. The photo below shows the standard Sierra reservoir on the left: on the right are reservoirs from Mk1 Fiestas. These fit the Sierra BMC.
In my Cabrio headroom above the reservoirs is my critical issue. The Sierra reservoir has a maximum depth of 85mm above the BMC - the Fiestas are 90mm.
Will either of these fit in a Sportster?
Would any one like to try the Fiesta option? They both need a home?
Mike