The Greenspeed
Anura is an ideal tricycle for older people and people with special
needs. Delta style tricycles like the Anura offer easier entry and
exit compared to Tadpole style tricycle. The Anura also offers a
higher seat height making the rider more visible in traffic. The
Anura is unique being that it has a differential so both rear wheels
drive the tricycle forward but yet does not hinder it ability to turn.
The differential also helps the bike go straight up a steep hill where
other tricycle that do not have a differential have difficulty because
the front wheel will skid to the one side. Another unique feature is
that both rear axle disc brakes are controlled by one brake lever and
the other brake lever controls the brake on the front wheel. The
under the seat steering put your arms in a more natural position besides
your hips.
ANURA
HISTORY - Design and Development
Anura Specifications |
Model |
RL |
SL |
IGH |
QUAD |
Frame |
7005 Aluminium Alloy |
Seat
Angle |
Adjustable 39 – 63° |
Track |
26.4” / 67 cm |
Wheel
base |
52-68"
/ 132 - 190 cm |
Width |
28.5”/72 cm |
Length |
69-85”/175-217 cm |
Seat
height |
17 – 18” / 43 – 45 cm |
X-seam
range |
Small
frame 34 - 44", Standard frame 40 - 50" |
Ground
Clearance |
2” – 3”(R/D) |
3” – 4” (R/D) |
6.5”
(bars) |
3” – 4” (R/D) |
Turning
circle |
11.5'
-15.2' / 3.5 m - 4.6 m (kerb to kerb) |
Trike
breakdown |
Removable seat & separable frame |
Brakes |
Avid BB5 cable disc |
Front
hubs |
Chosen
Co. sealed bearings |
Greenspeed |
Spokes |
Stainless
Steel, 14g |
Wheel
sizes |
16" x 1 1/2" and/or 20" x
1.5" |
Rims |
Jetset alloy, 20 - 349 & 20 - 406 |
Velocity |
Tyres |
Greenspeed Scorcher 40 - 349 & 40 - 406 |
Scorcher
& Kojak |
Cranks |
Shimano
or Sugino |
Schulumpf
SD 2sp. |
Sugino |
Chain
rings |
50/39/30
or 46/34/24 |
34
/ (51) t |
44t |
Front
Derailleur |
Shimano
Sora |
None |
Cassette |
SRAM
11 - 28t 9speed |
Nu
Vinci |
SRAM
11/28 9sp. |
Rear
derailleur |
Sora
mid cage |
Sora
short cage |
none |
Sora
short cage |
Chain |
SRAM
PC- 951 |
Shifters |
Shimano
Dura Ace Bar End |
Nu
Vinci |
Sun
Race |
Pedals |
Black
Plastic |
Gear
range |
27
sp. 18-80 g" |
18
sp. 21-87g" |
Infinite
sp. 14-86g" |
9sp.
26-65 g" |
Weight |
18
kg / 40 lbs |
19
kg / 42 lbs |
20
kg / 44 lbs |
Rider
and luggage weight limit |
135
kg / 300 lbs |
Standard
equipment |
Two
whee drive with differential, three wheel disc brakes |
Optional
equipment |
Tandem
coupler, fenders, luggage rack, computer mount, light mount |
Boxed
size |
125 x 32.5 x 60 cm / 49 x 13 x 24 inches |
MSRP |
$2,990 |
$3,135 |
$3,585 |
$3,435 |
Note
:- Specifications subject to change without notice. Photos for
general illustration only, thus equipment shown may vary from
specifications. |
There are now four versions of
the Anura :-
- 1.
The
RL Anura has the standard “27 speed” derailleur gear
system, comprising of a 9 speed rear cassette and derailleur,
plus a triple crankset. This gives a gear range of 14 gears
from 18 to 80 inches. This setup uses a mid-cage rear
derailleur, giving 2” of ground clearance with the standard
16” wheels.
- 2.
The
SL Anura has the Schumpf Speed Drive instead of the triple
crankset. This is a two speed bottom bracket which does away
with the front derailleur and derailleur post, making the
front of the trike a lot cleaner and easier to mount. There is
less overlap of gears with 18 possible gear combinations
giving a range from 21 to 87 inches with 13 individual gears.
This system only needs a short cage rear derailleur, giving
3” of ground clearance with the standard wheels. Another
advantage of this system is that the Schumpf can be changed
while stationary, so that if you have had to stop suddenly
without time to wind down the derailleur gears, you can just
hit the Schumpf button, and it will drop the equivalent of 4
derailleur gears to enable an easy take off from rest.
3.
The
IGH Anura takes the internal gearing one step further. As well
as discarding the front derailleur, we now discard the rear
derailleur and use a much cleaner method of changing gear than
pushing the chain from one sprocket to another. IGH means
Internally Geared Hub, whereby the gears are inside the hub
instead of being exposed to road muck on the outside of the
wheel. Almost any IGH can be used in the Anura, from a 3 speed
Sturmey Archer to the 14 speed Rolhoff hub with a 500% range.
However our standard set-up uses the Nu-Vinci continuously variable hub, the N360, plus the Sclumpf Speed Drive.
This hub is an incredibly quiet and smooth hub with NO steps
or clunks in changing gear as there are no gears inside the
hub! It is continuously variable between the ratios of 1:0.5
to 1:1.8 (360%) and with the Schlumpf, this range is increased
to 594%, or from 14 to 86 inches. Like the Schumpf, the ratio
can be changed while stationary as well as under power. The
complete absence of a rear derailleur or tensioner means not
only less maintenance, but a more than doubling of the
standard ground clearance of the SL from 3” to 6.5” with
the standard wheels.
4.
The
Anura Quad is a quadricycle rather than a tricycle. While the
narrowness of the Anura is very handy for getting through
tight places, some people wanted more stability. So how to
make it more stable while still retaining the narrow width and
the high seat? Answer – add a wheel! The problem with adding
a wheel to a tadpole trike is that on uneven ground one of the
rear wheels will leave the ground, so if there is only one
wheel drive, or two wheel drive with a differential, you will
suddenly have no traction!And if you use two clutches, turning will be
compromised. However with the Anura, thanks to the superior
weight distribution, both drive wheels stay firmly on the
ground, if a front wheel lifts, the other wheel seamlessly
takes over the steering duties of both front wheels. After
all, at this point it is just becoming a trike again! The Quad
is achieved by changing the trike front frame for a Quad front
frame, so it can be retro fitted to an existing Anura trike,
and one could even have a trike or quad just by changing the
front ends. Standard gearing on Quad is the 9 speed 11-28
cassette. However this could be upgraded with an 11/34
cassette or a Schumpf Drive.
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