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Brand new bike...

basking in the...

sun in Bergen.
Photo: Peter C.D. Hansen
![[1998 Aprilia RS250]](images/98rs250-th.jpg)
Photo: Aprilia

Race-prepared RS250 (not mine) with the original racing bodywork.
Photo: Unknown

Left side view

Fron view

Details from dash. Notice the posted max velocity - impressive, huh?

Posing "hooligans" showing off the colour schemes of '98

Fuel tank is a work of acrylic art
Photo: Monica Gebhardt and Elisabeth Svendsen from the
student's camera-club, University of Oslo, Norway. |
|
David's 1998 Aprilia RS250
Magazine reviews
Movies
Take a look at Morten's
Aprilia page where you'll find a couple of
movies of Morten doing some pretty decent laps at our local
racetrack, Rudskogen.
(Watch out, text may turn Norwegian as these pages are just a part
of a large-ish Norwegian website.)
Info
Technical specifications
|
Engine
type |
Suzuki
RGV250 two-stroke, two-cylinder in 90° V formation, liquid
cooled, lamellar intake in the casing. Sequential two-stage valve on
the exhaust, electronically managed by a digital control unit and
controlled by a stepper motor |
|
Pistons |
special
alloy with a high silicon content |
|
Bore
and stroke |
56
x 50.6 mm |
|
Displacement |
249.25
ccm |
|
Compression |
12 ± 0.7:1 |
|
Max power |
60
bhp @ 10,200 rpm |
|
Max torque |
32
ft-lb @ 10,100 rpm |
|
Tickover |
1300 ± 100 rpm |
|
Carburettors
(2) |
Mikuni
TM 34 SS with flat valve (flatslides), with electronic management by
electrovalves that section the maximum air passages and the idling circuits |
|
Premix tank |
1.6 litres (including 0.3 litres reserve) |
|
Ignition |
CDI
digital, with advance mapping programmed on three parameters (opening
of carburettors valves, opening speed, engine running speed) |
|
Start-up |
kick |
|
Gearbox |
6
speeds, entirely extractable. Forced lubrication with a volumetric pump |
|
Gear oil |
700cc, SAE 75W90 |
|
Ratios |
Primary drive, 23/59 = 1:2.565
|
1st |
11/27 = 1:2.454 |
|
2nd |
16/26 = 1:1.625 |
|
3rd |
17/21 = 1:1.235 |
|
4th |
22/23 = 1:1.045 |
|
5th |
24/22 = 1:0.916 |
|
6th |
25/21 = 1:0.840 |
Final drive, 14/42 = 1:3.000
|
1st |
1:18.889 |
|
2nd |
1:12.505 |
|
3rd |
1:9.506 |
|
4th |
1:8.045 |
|
5th |
1:7.054 |
|
6th |
1:6.464 |
Alternative final drive 14/43 = 1:3.071
|
1st |
1:19.330 |
|
2nd |
1:12.803 |
|
3rd |
1:9.728 |
|
4th |
1:8.231 |
|
5th |
1:7.215 |
|
6th |
1:6.617 |
|
|
Frame |
inclined
double beam in an alloy of alluminium and magnesium, with thin wall
shell structure. Sleeve and side plates cast in an alloy of
alluminium and magnesium |
|
Suspension |
front:
Showa fork with upside-down rods in high resistance steel, Ø
40 mm, with adjustable extension and compression. Max travel 120 mm.
rear:
swinging rear fork in alloy of alluminium and magnesium, with arms
with differentiated design. Single Boge/Sachs shock-absorber with
separate tank, adjustable extension, compression and spring preload.
Max travel 64 mm |
|
Fork oil |
436cc in each fork, 5W or 20W |
|
Brakes |
Brembo
front brake with double floating disc, Ø 298 mm, caliper with
4 positions with differentiated diameter; rear brake with single
disc, Ø 220 mm |
|
Rims |
in
alluminium alloy, with 5 tangential spokes. Front 3.50 x 17";
rear 4.50 x 17" |
|
Tyres |
front:
120/70 ZR 17"
rear:
150/60 ZR 17". Dunlop 204F/J |
|
Tire pressure |
front: 190 kPa / 1.9 bar
/ 28 psi
rear: 220 kPa / 2.2 bar /
32 psi |
|
Weight |
140
kg dry
167
kg fully tanked |
|
Max load |
160 kg |
|
Fuel
tank capacity |
19.5
litres (including reserve 3.6 litres) |
|
Coolant |
1.9 litres (50 % water + 50 % anti-freeze) |
|
Rake |
25°
30' |
|
Trail |
102 mm |
|
Dimensions |
maximum
length 1975 mm.
maximum
width 690 mm.
maximum
height 1180 mm.
wheel
base 1360 mm.
seat
height 810 mm.
min.
ground clearance 135 mm. |

This Aprilia
RS250/125 Webring site owned by David
and Morten.
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