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Athena

Athena Big Bore Cylinder Kit (70cc Bolt On) - 47.66mm Bore 070200

  • Based on 36 reviews
Condition: New
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$169.97 Why this price?

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Availability: 11 left in stock
Fulfilled by Speed Outfitters
Arrives Jul 9 – Jul 13
Order within 2 hours and 16 minutes
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Features

  • Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets
  • Includes Forged piston, rings, clips and pin
  • Athena top-end gasket set includes required seals and hardware
  • Easy-to-follow step-by-step installation instructions
  • Most are bolt-on; no machining required except where noted

Description

Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets. Includes Forged piston, rings, clips and pin. Athena top-end gasket set includes required seals and hardware. Easy-to-follow step- by-step installation instructions. Most are bolt-on; no machining required except where noted. This item fits the following vehicle applications: compatible with Yamaha YJ50 Vino 2002-2004 compatible with Yamaha YJ50RA Vino Classic 2002-2005 compatible with Yamaha YW50 Zuma 2008-2011 compatible with Yamaha YW50 Zuma 2002-2005


Manufacturer: ‎Athena


Brand: ‎Athena


Model: ‎Big Bore Cylinder Kit (70cc Bolt On) - 4


Item Weight: ‎2.49 pounds


Product Dimensions: ‎7.7 x 5.9 x 4 inches


Item model number: ‎070200


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎070200


OEM Part Number: ‎70200


Date First Available: August 1, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 9 – Jul 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • As long as guidelines are followed and engine is compatible, this kit will work perfect.
Increases overall cruising speed and provides better acceleration.
Reviewed in the United States on January 13, 2023 by Scott and Kaitlin Connolly
    • Gotham Cycles, Athena70cc big bore kit.
If you want absolute Greatness, the people at Gotham Cycles is your place! I've purchased 2 athena big bore kits from them and there were both AWESOME!!! Best part is the customer service, there are well trained and treated me like family. Thank you guys for being AWESOME!!!!! 5 STARSSSS
Reviewed in the United States on February 28, 2022 by Timothy l.
    • Amazing product!
Great upgrade for moped, it will get your speedometer to break because it will make it go so fast. I had a yamaha zuma '01 and this increaed my top end from 37 to 46. Acceleration was increased tremendously. Pull back on the throttle and it gets so much more HP it will pop a wheelie if your not careful. Ive put on around 3,000 miles with this kit, and its running better than the original engine. Would recommend, however dont do what i did and dismantle your engine because you think you know what your doing. Had to watch alot of youtube to get this sucker bsck together. All in all, great addition and upgrade if your somewhat mechanicaly inclined. Best kit for the price. ... show more
Reviewed in the United States on December 17, 2016 by Todd Devon
    • Meh
More power but.... You can't use the carbon reeds because they don't seal in the cage. It also does not come with the gasket and oring for the reed cage. But it does come with a large oring that isn't used on this engine lol
Reviewed in the United States on September 29, 2020 by O'bummer
    • POOR CASTING
The casting at the bottom of the cylinder was so thin it rolled back and folded over. Casting pieces in the crankcase mean I now have a full teardown rather than just a top end job. Poor quality, pot metal cylinder.
Reviewed in the United States on August 26, 2022 by Dan
    • Huge increase in torque off the line 0-20 is fast and burries the speedo and then some
Did not like it has a new rist pin but does not have a new roller bearing have to use old one
Reviewed in the United States on September 3, 2018 by Murder Zuma
    • 10 more MPH
10 more MPH and worth every cent. Easy to install and super stoked on the extra power. Don't forget new 90 jets, Athena Scooter Roller Kit 15mm D x 12mm L 5.6 Gram rollers and remember only swap out every other roller, 3 old, 3 new. Also, adjust your air fuel and idle screws. Finally I pulled the internal snorkel out of my breather box for 91 octane and my set up works great. Best bang for your buck to increase speed, torque and fun! ... show more
Reviewed in the United States on January 3, 2013 by Amazon Customer
    • Four Stars
installed on my 2009 zuma and works great without mod. works better after carburator accel mod.
Reviewed in the United States on October 24, 2016 by VIRGILIO

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