I have a model 92 Bultaco Sherpa T that I would like to use for twin shock trials. I understand that I need a Rear Sprocket Guard (Shark Fin) for the bike.
Does anyone know where I can purchase one?
Thanks
Rear Sprocket Guard (SharkFin)
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Kurt
- B grade participant

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- Bike: Montesa, SWM, Ossa
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Re: Rear Sprocket Guard (SharkFin)
Weld a mount to the swingarm so you can fit one off a gasgas, sherco, vertigo, Montesa etc that has the chain on the left side.
Another option is to strap, cable tie etc a piece of plastic to the swingarm in the general shape of a sharkfin.
Another option is to strap, cable tie etc a piece of plastic to the swingarm in the general shape of a sharkfin.
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Bully fanatic
- Expert participant

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- Club: westerndistricttrialsclub
- Bike: Bultaco sherpa T
Re: Rear Sprocket Guard (SharkFin)
Easiest way on a Bultaco is to use the rear torque arm to mount your sharkfin onto. Make one out of a bit of thinish aluminium sheet or just buy a cheap plastic cutting board at a dollar shop and cut that to suit. The shape is easy. Sharkfin says it all. Either use small screws and nuts or pop rivets to hold it on there. I weld an aluminium one onto my ally torque arm on mine.
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PaulMc
- Junior participant

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- Club: DMVC
- Bike: Bultaco
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Re: Rear Sprocket Guard (SharkFin)
Thanks all,
I used the cheap plastic chopping board option bolted to the torque arm as suggested - seemed to work well. Thanks again
I used the cheap plastic chopping board option bolted to the torque arm as suggested - seemed to work well. Thanks again