This transmission has three
gears with similar ratios as the OEM trans and a fourth gear that enables
the bike to go 72 mph with the engine at 2950 rpm using a large drive
sprocket and a standard high profile tire. The 356-T6 gearbox case design
is externally the same as the original case with the interior beefed up to
accept larger bearings. The top cover has a thicker flange to incorporate
the new gear change mechanism. The detent mechanism uses a roller to
eliminate friction.
The transmission is self contained and sealed. A new clutch basket
is included allowing the clutch to be shimmed without opening the
trans case.
Smooth shifting up or down. No more jamming it into gear and
breaking parts.
Solid detents for all four gears and neutral.
Shift pattern unchanged.
Replaced the taper and woodruff key on the clutch input shaft with
an involute spline.
Replaced the old style sprocket six lobe spline with a larger
involute spline.
Output sprocket, your choice of 19,21,23,24,25 or 26 teeth provided
with trans.
The oil fill and vent plug is on the case cover, and a magnetic
drain plug in the bottom with an oil level check plug on the lower
right front of the case.
The Transmission is isolated from clutch assembly so each can use
different lubricants,eg:
85-90W synthetic gear oil in the trans and HD clutch oil in the clutch
assy.
The first production lot of 50 is
available and selling fast, they are delivered as we assemble them. Place
your order now through your favorite distributor and be ready to cruise in
Overdrive. All orders are shipped via UPS ground, unless otherwise
specified
New "old style lower cases" are also available in
A356-T6 aluminum.
MADE
IN THE USA
Designed and Manufactured by
Chief-Overdrive, LLC
4030 Irongate Rd.
Bellingham, WA 98226
Phone (360) 734-4718
