SKU: 76329024393
pedal bike engine

pedal bike engine 79cc Monster 80 Bike Engine Kit

Sale price$18.97 Regular price$21.08
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Description

pedal bike engine 79cc Monster 80 Bike Engine KitNOW IN STOCK! 79cc Monster 80 COMPLETE Bike Engine Kit 4 Stroke A bigger kit to get your bike moving. This setup includes a CNC single speed transmission with a shaft keyed centrifugal clutch. Using the motor gas tank and exhaust which both can be upgraded (see 79cc Monster 90 kit). 4 Stroke engine kits are very different from 2 stroke kits in many ways. Building a 4 stroke bike is a little more involved then the two strokes, the extra effort is worth

NOW IN STOCK!


79cc Monster 80 COMPLETE Bike Engine Kit - 4-Stroke

A bigger kit to get your bike moving. This setup includes a CNC single speed transmission with a  ⅝ shaft keyed centrifugal clutch. Using the motor gas tank and exhaust which both can be upgraded (see 79cc Monster 90 kit).

4 Stroke engine kits are very different from 2 stroke kits in many ways. Building a 4 stroke bike is a little more involved then the two strokes, the extra effort is worth it. Pull start engine, not push start like the 2 strokes. Overall this type of engine is more reliable with more power and torque. With some of the larger cc motors, the top speeds far exceed the 2 strokes. Since these motors are larger in cc they are also larger in size and weight. Almost all bicycles will need to use a wider crank setup to clear the motor, the stock arms and pedals will hit the motor when pedaled as a regular bike. One piece cranks will also require a bottom bracket conversion set as well (not included).

This style of the engine might need slight modification to the bikes and will not fit all frames.

Advantages of 4 Stroke Bicycle engine kits:

  • Use straight gas (no mixing oil with gas)
  • More Horsepower
  • More Torque
  • Quieter Engine

This complete kit includes:

  1. 78.5cc - 79cc 3HP OHV GasBike Horizontal Shaft Gas Engine 
  2. Transmission for 78.5cc - 79cc OHV GasBike Horizontal Shaft Engines
  3. Heavy Duty Bicycle Mounting Kit for 78.5cc - 79cc or 212cc OHV Predator Horizontal Shaft Engines
  4. Throttle Handle
  5. Throttle Cable - 50"
  6. 44 Tooth Sprocket
  7. Pineapple Bushing Kit
  8. 415 Heavy Duty Chain
  9. Idler Pullet Chain Tensioner with 2 Bolts
  10. Throttle Linkage

The construction and engineering on this unit have been upgraded for improved durability and service life. This tough gas engine features a durable cast iron cylinder that withstands wear and abuse, fuel shut off for safe transport and gas saving overhead valves for a cooler, cleaner performance. The horizontal shaft design makes this an ideal all-purpose gas engine.

  • Upgraded engineering and construction for improved lifespan
  • Durable cast iron cylinder withstands wear and abuse
  • User-friendly controls for easy starting and operation
  • Fuel shut off for safe transport
  • Ball bearing support shaft for long life
  • Recoil start


ENGINE SPECS:

Name 3 HP (78.5cc - 79cc) OHV GasBike Horizontal Shaft Gas Engine 
SKU 69733
Brand GasBike Engines
Engine displacement (cc) 78.5cc - 79cc
Horsepower (hp) 3
Maximum speed (rpm) 3600 RPM
Maximum Torque (ft. - lbs.) 3.5 ft. lbs. @ 2500 RPM
Mounting pattern 102mm L x 104mm W - 61.5mm W (4 in. L x 4.9 in. W - 2.4 in. W )
Mounting type Horizontal
Quantity 1
Shaft rotation direction Counter clockwise
Sound rating (dB) 104 dB
Start type Recoil start
Product Height 8.5 in.
Product Length 12-1/4 in.
Product Weight 24.25 lbs / 11 kg
Product Width 11-1/2 in.
Shaft length (in.) 2.4 in. (60.1mm)
Shipping Weight 26 lbs
Stroke length (in.) 37 mm




TRANSMISSION SPECS:

  1. 79cc Transmission plate with complete sprocket and shaft assembly (Sprocket = 22T and 9T)
  2. 11 tooth, #415 sprocket Centrifugal Clutch
  3. Complete hardware for mounting the transmission plate on the engine (Screw thread size is 5/16-24)
  4. #415 Chain, 41 Link with a master link

 

NOTE: NO MANUAL INCLUDED.


Our 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76329024393

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Lina
Boise, US
★★★★★ 5
Fabulously bizarre and effective
These silicone socks have to be the strangest item I have ever ordered from Amazon. However strange they are, I was pleasantly surprised with them. My order came with two pairs, and I took one pair out to wash before use. I laughed at handling them then because they were a cross between hospital socks and leftover mannequin skin…trippy. The socks dried fast, so I put on foot lotion and put the socks on. The socks are beige skin tones that cover the entire foot up to the ankle, basically booties. The silicone is very soft and makes putting on and taking off the socks easy. They are also surprisingly easy to walk around in because the bottoms have grips, again, like hospital socks. I walked on tile, hardwood, and carpet with no slipping. The booties also stayed in place with no issues. I was concerned my feet would sweat, but that didn't happen. I was able to wear them for 3 hours without sweaty feet. When I took them off, my feet were a lot more soft than before or if I had used regular socks. For reference, my feet are not terrible, but the skin around my toes is dry and peeling from my picking(gross, I know). The socks I got are a size large, which worried me because they are big, but the site said for my shoe size (9) that's what I should order, and they were right. They are the perfect size and stretchy for room. I can't believe how cool and well-thought-out these socks are, on top of working. Honestly, these are among the top 20 favorite items I've ordered from Amazon. They may look incredibly strange, and they are, but they work wonders.
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Reviewed in the United States on June 5, 2025
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Amazon Customer
Houston, US
★★★★★ 3
Not well made
I have used these for 2 weeks now and one of them has a hole in the sole... I won't ever buy them again
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Reviewed in the United States on July 15, 2025
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alexandra
Louisville, US
★★★★★ 5
love it
Color: White, Size: 3.72 fl oz
i love this ! it is very glittery! only really need one spray. does wash off the clothes. i wish it had a scent. it has no smell to it.
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Reviewed in the United States on April 18, 2026
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Amazon Customer
Massapequa, US
★★★★★ 5
Worked great!
Color: White, Size: 3.72 fl oz
Worked great for my daughters gymnastic showcase.
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Reviewed in the United States on May 18, 2026
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Jennifer Morgan
Draper, US
★★★★★ 5
Good product
Color: Purple, Size: 3.72 fl oz
Very good. Gave off a good purple shimmer but not too chunky. Definitely would our have again. Got for a Halloween trick or treat to go with my Ariel costume and it was perfect. Not sticky or anything. Sprays just like a perfume and dries quickly. Does transfer but still a very good product. Not a strong smell either. Definitely worth the amount of money. Does wash off very easily as well.
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Reviewed in the United States on October 22, 2024

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