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The Magnum has a large number of features which make it particularly easy and enjoyable to ride. The seat is also adjustable for angle, so you can choose the amount of recline which is the most comfortable for you. The frame folds and all wheels have quick releases, so it is easy to transport. The cross member is Ved back to allow the rider to get their legs closer to the seat, which is adjustable for height, to make entry and exit easy.
The Magnum is designed to take riders up to 400 lbs, so it is very strong, yet is made from 7005 aluminium alloy, so it is not a heavy machine. With its large Big Apple tyres, high ground clearance, and wide range of gears, it is equally at home offroad as it is on the road.
Unlike many trikes which use “direct” steering, the Magnum uses the GreenSpeed “crossover” steering which makes the steering much easier, due to the leverage in the linage, and the fact that one is using one’s biceps, rather than one’s wrists or the smaller muscles in one’s arms.Plus it gives superior Ackermann compensation, reducing tyre scrub and drag. And unlike the bushes or bike head set bearings used in some trikes, the Magnum uses industrial ball races for the kingpin bearings, giving low friction, long life, and ease of replacement.
While many trikes use disc brakes, and we used to offer both discs and drums, we have found that for trikes, drums offer a number of advantages. Firstly they are much easier to adjust, with only the cable adjustment being required, instead of having to fiddle the awkward pad alignment, as well as the pad to rotor clearance. Then as the lining area is much larger, the brake wear is very much less, making the need for adjustments far fewer, and linings (pads/shoes) are practically everlasting.
One of the secrets of the superior ride of Greenspeed trikes is in the seat. The seat was designed by a chiropractor so that it gives both lumbar and shoulder support. Human beings are similar to car engines in that they are only about 30% efficient, so that in putting out 100 watts to propel a trike at some speed, there is over 200 watts of heat to be dissipated, thus the seat has an open weave fabric to allow a cool ride in summer. It is laced to the seat frame with sock cord so that it will confirm to the shape of your back, plus it will insulate you from road shock. To further improve the suspension in the seat, the seat frame on the Magnum has been anodized, instead of powder coated as on the earlier GTO, so that the fabric will slide over it easier, and the finish will last longer.
The alloy wheel rims on the Magnum are double walled and eyeleted with 36 stainless steel spokes for strength. The tyres are Schwalbe Big Apple, 20” x 2.0”. Despite their size they are a lightweight tyre which are designed to run at 35 to 70 psi, and have very low rolling resistance. They can be used at 70 psi on smooth roads, and 35 psi off road.
A 52/39/30 triple crankset is used on the front with a 9/34 nine speed cassette at the rear, giving 27 gear combinations, but more importantly a wide gear range of 528%, from 18 inches in bottom to 95 in top. Making it possible to both climb mountains, and to have a high speed on the road. If an ever greater gear range, and less maintenance is desired, then the dropouts and cable guides have been fitted to take the German 14 speed Rohloff rear hub and the Swiss Schlumpf Mountain Drive which will give a whopping range of 1250%. The infinitely variable Nu Vinci drive, has also been a popular fitment. Used with the Mountain Drive, it gives a range of 950%.
|Frame||Aluminium Alloy 7005 Folding|
|Width||33” – 84 cm|
|Length||75 to 84” 189 to 214 cm|
|Height||31” – 76 cms|
|Seat Height||14 to 18” – 35 to 45 cm|
|Seat Angle||30 to 48 degrees|
|Crank Height||14 to 16” – 36 to 40 cm|
|X-seam range||44 to 54” – 112 to 138 cm *|
|Ground Clearance||6.5” – 16 cm|
|Turning Circle||13 feet – 4.0 m|
|Track||33.5” – 85 cm|
|Wheelbase||45”- 115 cm|
|Front Wheels||20” Alloy rims with Stainless Steel Spokes & push button Q/R|
|Rear Wheels||20” Alloy rim with Stainless Steel Spokes & Q/R|
|Tires||20" X 2.0" (51-406) Schwalbe Big Apple, 35 to 70 psi|
|Cranks||Shun SS-ZO-300 52/42/30 x 165 mm|
|Cassette||9 speed 11/34|
|Front Derailleur||Micro Shift|
|Shifters||Shimano Dura Ace 9 speed Bar End|
|Gear Range||18 to 95” – 528%|
|Brakes||Sturmey Archer 90 mm drums|
|Standard Equipment||Rear mudguard, safety flag|
|Optional Extras||Mirror, head rest, front mudguards, luggage rack|
|Rider weight Limit||450 lbs – 200 kg|
|Luggage Weight Limit||88lbs – 40 kg|
|Trike Weight||42 lbs – 19kg|
|Boxed Size||35 x 31x 18 – 88 x 78 x 47 cm|
For assistance with customizing your product or general questions, please do not hesitate to call us, use the form below, our email us at firstname.lastname@example.org.
Office hours 9-5 mon-fri, Sat 10-4pm
Showroom: by appointment only