Search  for anything...

420 12T 17mm Motorcycle Front Engine Sprocket Compatible with 125 140 150 160cc Honda TaoTao Loncin Roketa Coolster Sunl Lifan Chinese ATV Quad Dirt Bike

  • Based on 316 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 11 hours and 18 minutes
Available payment plans shown during checkout

Size: 420 12t 17mm


Number of Items: 1


Features

  • Very sorry friend, we sent this product wrong, we sent two sizes, there are 420 12T and 428 13t purchase may get one of them randomly, can send 100% correct size I will delete this paragraph
  • Compatible with Most Engines Such As Lifan Loncin Jialing Zongshen Etc. And Most Chinese Made 50cc 70cc 90cc 110cc 125cc 140cc 150cc Pit Dirt bikes / ATV(Brand As SUNL JCL ROKETA KingRoad SSR SDG Etc).
  • Package includes: 4*Bolts,2*Mounts,1*wrench,1*420H link head
  • Specification: 420 12 Tooth 17mm Inner Diameter.
  • Please confirm the size before placing an order, if you have any questions, please contact us

Package Dimensions ‏ : ‎ 3.62 x 2.8 x 0.75 inches; 4.97 ounces


Item model number ‏ : ‎ 420 12T 17mm


Date First Available ‏ : ‎ May 7, 2022


Manufacturer ‏ : ‎ MRELC


Best Sellers Rank: #14,369 in Automotive (See Top 100 in Automotive) #2 in Powersports Sprockets


#2 in Powersports Sprockets:


Customer Reviews: 4.3 4.3 out of 5 stars 316 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

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.

Top Amazon Reviews


  • 125cc coolster
Size: 420 16t 17mm Number of Items: 1
Fit my 125cc pitbike and was very affordable!
Reviewed in the United States on July 21, 2024 by Zac Mikkelsen

  • Coolster 110CC
Size: 420 17t 17mm Number of Items: 1
Went from a 13T front sprocket to this 17T on my daughters 110cc Coolster…. It went from high rpms at 15 mph to 22 mph and still has plenty of take off power
Reviewed in the United States on January 1, 2024 by Brandon L. Taylor

  • Fits 2019 Honda Grom
Size: 420 14t 17mm Number of Items: 1
I used this for my 2019 Honda Grom, fits good. I got the 14 tooth, if your looking for stock gearing it's a 15 tooth. Going down to 14 gives you more torque but less speed. Stock, my Grom could go about 68, with the 14 tooth I was topping out at about 59. I also tried a 16 tooth, topped out at about 72. ... show more
Reviewed in the United States on February 20, 2023 by Jr

  • Quality at a reasonable price
Size: 420 12t 17mm Number of Items: 1
It fit our Tao tao 125
Reviewed in the United States on May 19, 2024 by Eddie

  • Used on 125cc quad
Size: 420-10T Number of Items: 1
Gave the bike a nice little power jump well worth money
Reviewed in the United States on May 31, 2023 by Cody

  • Does not fit apollo Dbx-19. Makes my chain rub against the in side of my sprocket cover
Size: 420 17t 17mm Number of Items: 1
Exactly what the title says. I purchased the 420 17t 17mm so I can get more top speed on my 125cc DB-x19 apollo only to find out that when I put my sprocket cover back on the chain started to rub the inside of the sprocket cover when the rear tire turned and it doesn’t help that my chain is a 428 and it’s already tight as it is. If I somehow find a solution to this then I will change my rating but until the it’s a one star for me. ... show more
Reviewed in the United States on February 3, 2024 by Samuel McQueen Samuel McQueen

  • A little extra pull
Size: 420 12t 17mm Number of Items: 1
I used this on a 125cc Coleman mini quad to help it on hill climbs. The smaller front sprocket helped a bit, which is all I was looking for. Install was simple.
Reviewed in the United States on August 23, 2022 by Mark

  • Ordered a 420 12 Tooth received a 13 tooth
Size: 420 13t 17mm Number of Items: 1
I received the wrong size, but luckily it still worked much better than expected. So I think it actually works in my favor, less loss of top speed.
Reviewed in the United States on November 4, 2023 by Does anyone know the replacement size for the watch band or even a lanyard? My son is 3.5 and I'm sure it will be too big and I'd love to find a way that he can't take it off. Suggestions?

Can't find a product?

Find it on Amazon first, then paste the link below.