Page 13
August 28, 1973
The purpose of this article is to let you know what bikes the top
enduro riders ride and how they set up their bikes. Enduro riding is a
very specialized sport. An enduro bike must be able to cope with any
terrain and still travel quickly enough to remain on schedule. This is
the way the top ten D-37 enduro riders of 1972 do it.
One of the most interesting things I found out while doing the
article is _how wi lIing the top riders are to help. If you have any
questions of them, I'm sure they would be glad to answer. However,
the m9st interesting thing is, obviously, that the XL 250 is the most
popular bike.
Larry Langley
SOME I-NTERESTING STATISTICS
AVERAGE AGE: 38 years
POPULAR TIRE: Cheng Shin (70%)
POPULAR TWO-STROKE OIL: Bardahl VBA (50%)
POPULAR SHOCK: Curnutt (50%)
POPULAR FOUR-STROKE'OIL: Castrol (100%)
FAIRLY STOCK BIKES: 60"10
#1
Bob Steffan
Age: 47
Bike: Bultaco Pursang Mark VI
Displacement: 326cc
Carb: Amal 36mm
Gearing: Countershaft 13 teeth
Rear
42 teeth
Tires: F: 3:50x21 Cheng Shin
R: 4:50.x18 Cheng Shin
Timekeeping system:
Tire Pressure: Front
6-8 Ibs.
Rear 10-12 lbs.
Oil: Bardahl VBA mixed 36 to I
Silencer: Skyway
Shocks: Betor
Club: Shamrocks
Watch aneI speedometer (Figures everything in his head!!)
Modifications:
Wide ratio gearbox installed from Matador Alpina. Baja speedometer drive
installed on front axle. VDO speedometer. 3.4 gallon gas tank. Fesma ignition.
Stock down pipe is used with angle iron re;nforcing in place of skid plate. Dirt
Rider shock and fork covers. Rear spokes have safety bolts to prevent loss of
spokes at hub in case they lossen up.
Comments:
Bob was doing very well this year when he crashed very hard in the Bad
Mountain Enduro breaking his pelvis and a couple of ribs. Less than two months
later Bob ran the Greenhorn placing fourth overall!!! A fantastic riding
performance.
#2
Dave Ekins
Age: 41
Bike: Bultaco Alpina
Displacement: 326c
Carb: Amal 27mm
Gearing:
Countershaft 13 teeth
Rear
41 teeth
Tires:
.
F: 3: 15x21 l'ulJ Bore Trials
R: 4:20x18 Full Bore Trials
Tjre Pressure: F: 16 lbs.
R: 16 lbs.
Oil: Bardahl VBA mixed 32 to I
Silencer: Whispering Smith with
spark arrestor
Shocks: Betor
Club: Victors
Timekeeping systemm: RoU chart
Modifications:
Foam air filter. Rahm plaslic fenders. Matador front hub for fronl wheel drive
speedo",!eter (Iatc model). Bosch platinum spark plug used. Dirt Rider Chain
lube.
Comments:
Fairly stock mOlorcycle. Sponsored by Bullaco. Dave's bike was tom down al
the time pictures were taken so I had to do with a picture supplied by him.
