fibreglass or aluminium fuel tanks?

[wild foamy]

Hey peeps

Been drawing up some sketches for project FUCR, the tank that is on it now is fuck ugly and will be going, but inkeeping with the cafe racer them i want to find a smaller (but still large enough for good range) fuel tank, and due to the XZs' design of having the airbox and carbs underneath the tank it would need to have a fairly wide tunnel underneath, since my options for used tanks are limited im wanting to fabricate one.

however im not sure wether it would be more beneficial to use aluminium or fibreglass, will most likely be using large blocks of florist foam as templates so actually forming either shouldnt be a problem, only problems i can foresee are sealing them and finding a durable/reliable way of mounting the fibreglass tank :/

[Noise]

Fibre glass it mate. Least it's easy to work with and cheaper to buy than ally so if you do fuck up you wont be forking out too much

[wild foamy]

this is true, most ive ever made from ally was a chainguard for the fireblade, and even that came out a bit wonky.

[Cynic]

Dont want to dent your enthusiasm steve but i believe plastic/fibre glass tanks are not MOTable

[DirtyDT]

Fibreglass = no. Plastic = yes, if it is E marked.

[slice]

Has to be Ali cos it looks better and will never leak, better to in that the new fuel we are now getting has that horrible ethanol crap in it and some fibre glass is supposed to react to this stuff by melting! not sure about that but even the thought of 3 gallons of petrol running down my crutch is enough to make my ball's shrivel

[wild foamy]

ah balls, thats fucked my plans up then

ah well, will have to get started on my templates then

[DirtyDT]

Lead is an easy metal to work on and shape Steve.

[wild foamy]

too many pikeys round here, its likely to get nicked!

[drewpy]

Y not steel?

guy on ebay made my tracker tank for £60