The BBR Tuning Stage 1 Bicycle Engine Kit is the perfect engine kit for riders looking for a reliable motor with a little bit of power behind it. This package brings together the ever-dependable BBR Tuning 66/80cc Silver Bicycle engine and the BBR Tuning Billet Aluminium High Compression Cylinder Head to give you a high compression, high performing, and highly reliable engine for your next build.

Engines with Quality

BBR Tuning is known for quality, and their 66/80cc Silver Angle Bicycle engine doesn't disappoint. Unlike other engines out there, BBR Tuning uses only the highest-grade clutch components to make sure your engine engages and disengages properly. They've also installed high quality crank bearings to keep you riding longer than those other motors with cheap Chinese bearings.

A Head That Will Increase Horsepower and More

With the added BBR Tuning Billet Aluminium High Compression Cylinder Head you'll get more horsepower and better cooling out of your engine. With this head you'll increase your compression, which in turn will give you more power. More power means more torque and a little added speed, which is perfect for riders who climb hills or face inclines. Its deep heat fins and low profile will allow your engine to cool off faster and stay cooler when you're riding.

Don't be stuck buy part after part you don't need. If you've got some hills to climb or you just want a cooler running engine, the BBR Tuning Stage 1 Bicycle Engine Kit is made for you. Just bolt on the head, install the motor on your favorite bike, fuel it up, and you're ready to ride

PLEASE NOTE: Top end assembly required for this engine kit.

*Note: Gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

Installation is a breeze! The rider only needs some basic hardware skills, tools, and around 2-3 hours for installation and fine tuning adjustments (Note: Seller is not responsible for misuse of this kit).

Assembly of engine and motorized bicycle required. Click here for instructions

Product Requirements

Fits Most 26" Wheeled Bikes (Mountain, Cruiser, Chopper, Road) with V-frame. The frame should have 9-11” of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be 25-29mm (around an 1”).

** Also note: Sprocket Clamp Assemblies included with BBR Tuning 2-Stroke 48cc and 66/80cc, and 4-Stroke 49cc bike engine kits come with only 1x set of metal plates. Older production of these assemblies included 2x sets, but from testing and redesigning, existing engine kits and engine kits in the future will only require 1x set. This redesigned assembly helps secure your rear wheel sprocket better than in previous production.

1. Silver BBR Tuning 66/80cc 2-Stroke Engine
2. Bonus- BBR Tuning Billet Aluminum High Compression Cylinder Head
3. Low Profile Carburetor
4. Upgraded Chrome Muffler
5. Complete Clutch Cable Assembly with Clutch Wire Clip
6. Drive Chain Idler Pulley
7. Top Quality Japanese 202 Main Bearings
8. 415 Bike Engine Drive Chain
9. Drive Chain Guard
10. 2-Stroke Spark Plug
11. Electron Ignition Coil (CDI)
12. Locking Alloy Clutch Lever
13. Upgraded Twist Throttle and Cable With Grip
14. Updated 1.5L Black Teardrop Gas Tank (approx. Γàû of a gallon)
15. Fuel Line
16. Throttle Cable
17. Gasoline Tank Switch
18. Sprocket Clamp Assembly
19. 44 Tooth Chrome Drive Sprocket with 9 Holes
20. Large Spring (Heat Shield Spring)
21. Extension Spring (Recoil Spring)
22. High Quality Japanese Bearings on Both Ends of Crank
23. Required Hardware and Gaskets
24. Magneto
25. Kill Switch
26. Complete Digital Installation Guide
27. Spark Plug Removal Tool (While Supplies Last)!
28. Standard Universal Mounting Bracket

The BBR Tuning 66/80cc Stage 1 Race Series bike engine kit is about 8.5" height 7" length 5" width. The bike engine kit fits on standard, male frames with tubing of 25mm to 29mm in diameter. Larger frame sizes require drilling into bike frame with a stationary bolt and use the universal face plate to mount the front of the engine.

• 2+ HP (horse power)
• 25 to 40 mph depending on the gear ratio and weight
• Fuel Economy: 100-125 miles per gallon

Disclaimer: Operating a motorized bicycle and/or bicycle engine kit carries a risk of serious bodily injury. The rider accepts responsibility for any and all vehicle operation that may lead to personal injury, economic loss, social distress, other losses, costs and damages. BikeBerry.com is not responsible for injuries and/or damages resulting from operating this motorized bicycle or bicycle engine kit.

Disclosure of accurate engine size: While we have chosen to use the long standing factory branding engine size of "80cc", the true displacement of the bicycle engine is 66cc. Down through the years China bicycle engine manufactures have advertised their biggest engine as 80cc, therefore we have listed them in the same way on our website. However, the bore and stroke of an 80cc being 47x38mm equals 66cc. Therefore the true displacement of the 80cc bike motor is 66cc. In the west, the volume of a cylinder is calculated by using the formula Volume = Pi x Radius Squared x Stroke. However, in the east the displacement of an engine includes the area of the cylinder head's combustion chamber as well as the volume of the cylinder. Therein lies a discrepancy between measuring standards by the manufactures in China with those in the United States. However, all "80cc" engine kits on the market today are actually 66cc in displacement size if measuring by US standards.

BBR Tuning Engine Kits require a pre-mixed fuel ratio of 40:1 (3.2oz of oil to 1 gallon of gas)

• Recommended Gas Grade: 87 Octane
• Recommended Oil: Maxima Scooter Pro 2-Stroke Synthetic Motor Oil 1 Liter