Honda
Trail Bikes 88cc Big Bore Performance Kit (52mm):
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- High compression 52mm piston with rings, pin, & clips
- Head gasket kit
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- High compression 52mm piston with rings, pin, & clips
- Head gasket kit
- High performance race camshaft for stock head
- 20mm Performance carb assembly. Includes: 20mm carb, intake ported for STOCK head, heatstop, gaskets, mounting hardware/wrench, air filter (not shown in pic) and long throttle cable (11/4/04 - Updated throttle cable - a new type is provided that allows for more adjustment and will work on wider selection of throttles).
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- 52mm piston with rings, pin, & clips
- Head gasket kit
- High performance race camshaft (11/4/04 - Updated camshaft - more aggressive lift and duration without sacrificing low end torque)
- Race Head – Larger valves and porting for increased performance. Also has bigger cooling fins. Includes all necessary parts. Comes disassembled.
- 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, air filter (not shown in pic) and long throttle cable (11/4/04 - Updated throttle cable - a new type is provided that allows for more adjustment and will work on wider selection of throttles)
We recommend purchasing a high volume oil pump kit (available in this section).
Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).
1) Aluminum Cylinder
2) Gasket set
3) Piston and ring set
4) 18mm Carb
5) Intake
6) Air fliter
7) Throttle cable
8) Performance cam
9) Performance Spark plug.
1) Aluminum Cylinder
2) Gasket set
3) Piston and ring set
4) 20mm Carb
5) Intake
6) Air fliter
7) Throttle cable
8) Performance cam
9) Performance Spark plug.
1) Aluminum Cylinder with skid plate tabs.
2) Gasket set
3) Piston and ring set
4) 20mm Carb
5) Intake
6) Air fliter, Foam
7) Throttle cable
8) Performance cam
9) Performance Spark plug.
$1,235
The best performing pipe on the market, bar none. The ULTIMA Pipe has been manufactured specifically
for the 88cc Big Bore kits, from the ground up. Unique design with balance chamber and tune-able muffler for your performance level. Run the pipe without the Torquer Baffle (sold separately) for ported stock 50cc heads and remove the baffle when running performance heads.
This pipe is the little brother to the already FAMOUS ULTIMA Racing pipe.
This pipe is specifically designed for the Light bore kits that keep the stock XR50 head configuration. With it excellent low end torque and ultra quick response, you will now be the first one out of the corner and down the straight away.
Just like it's big brother, this pipe is manufactured from stainless steel, 100% STAINLESS STEEL, for the highest of quality.
1st Gear 2.357
2nd Gear 1.764
3rd Gear 1.400
4th Gear 1.136
5th Gear 1.000
*Not for use on a dirt bike. If you are riding on the street or racing supermotard the 5 speed transmission works great. If you ride on dirt use the 3 speed.
This kit fixes all of the tranny problem with your little XR50. Complete disc Manual clutch assy and a NEW 3-Speed Close Ratio Tranny, all in one kit. The new close ratio tranny solves all of the 1st to 2nd gear problem. A very smooth transition between gears and the advantage of the Takegawa Clutch set up. This kit will hold up to any horse power that you can get out of one of these little rockets.
