Strong, Light, Folding Frame
The Magnum SD/XL/BW is a new frame design from GreenSpeed. Similar to the rectangular section main tube used on the Anura for many years, the new Magnum main tube is both stronger and stiffer than the round tube used on the early Magnums. And to make further gains in strength and stiffness we have eliminated the welds in the main tube and the cross member, by making the front main tube in one piece, and cross member also in one piece, and curved so that it comes closer to the seat to enable the rider to mount and dismount easier. The frame material is 7005 aluminium alloy, which is stronger than the more commonly used 6061 aluminium alloy and stronger than mild steel, yet only 1/3 the weight. The frame is hinged like the earlier GT3, so that rear half can be folded over the front half to reduce the size enough to fit in the trunk of a car. The rectangular main tube also makes it easier to adjust the trike for leg length, as the cranks are now self-aligning, plus the cranks will not twist in the frame, if the pinch bolts or Q/R for leg length adjustment have not been done up really tight. We have also welded a boss to the frame to take the fixed idler for the optional Chain Gobbler, which automatically adjusts the chain length, as the cranks are moved in and out, to suit riders with different leg lengths.
Yet another feature of the new Magnum frames, is the ability to change frame sizes. The standard frame will take riders with an X-seam from 40 to 50 inches, or from about 5’ 3” to about 6’ 6” in height. However, as the boom clamp is an external clamp, rather than part of the frame, the main tube can be shortened as much as 4” to allow riders with an X-seam as small as 36 inches or about 4’ 9” in height.
So, now at last you can have your cake, and eat it too! A 26” rear wheeled trike with the legendary GreenSpeed roadholding and handling! The Magnum BW is available in usual the Magnum colours, Metallic Burgundy, Metallic Blue, and Yellow. The best news is that the price is only $3,490 USD / $3,690 AUD. The 1st initial Magnum BW shipment has now landed, so if you are interested, please order from your local GS dealer now, to avoid disappointment.