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The wind rushes through your hair as you accelerate in silence past ordinary bikers. The crisp smell of the mountain air is all you think about as you use your new freedom bike to propel you to your destination. No sweat, no hills to worry about just plain old fashioned fun.  Bring a smile to your face with our Thunderbolt Complete Cross Country kit.

At the heart of this kit is the HPC "Thunderbolt." This motor comes standard with our new gearless version that is the most reliable and powerful unit on the market. You can also choose the original geared version as well. This motor revolutionized the electric bike industry as it became the first motor to combine light weight (8.9 lbs) high torque (aided by high strength internal composite gears) high speed (33+ MPH) and the ability to accept up to 10 speed freewheels. This motor is the ultimate balance of torque and speed for those who want to do a little bit of everything.

At Hi-Power Cycles we only offer the best equipment money can buy.  The 2800W is in our opinion the best balance of performance hill climbing durability and price. This is a COMPLETE kit and includes everything you need to convert your existing bike.

Performance Statistics:

1000W System: 27 MPH (37V High Performance Li-NMC)

22 Mile Range battery weight: 5.6 lbs Motor Weight: 8.9 lbs (Geared) or 12.6 lbs (Gearless)

1500W System: 33 MPH (52V High Performance Li-NMC)

32 Mile Range battery weight: 7.8 lbs Motor Weight: 8.9 lbs (Geared) or 12.6 lbs (Gearless)

2000W System: 34 MPH (52V High Performance Li-NMC)

32 Mile Range battery weight: 7.8 lbs Motor Weight: 8.9 lbs (Geared) or 15.9 lbs (Gearless)

2800W System: 41 MPH (63V High Performance Li-NMC)

38 Mile Range battery weight: 9.5 lbs Motor Weight: 15.9 lbs (Gearless)

3500W System: 46 MPH (78V Ultra High Performance Li-NMC)

46 Mile Range battery weight: 11.7 lbs (Li-NMC) 9.9 lbs (LiPo) Motor Weight: 15.9 lbs (Gearless)

4000W System: 50 MPH (90V Ultra High Performance Li-NMC)

57 Mile Range battery weight: 13.4 lbs (Li-NMC) 11.3 lbs (LiPo) Motor Weight: 15.9 lbs (Gearless)

5000W: 52 MPH (90V Ultra High Performance Lithium)

57 Mile Range battery weight: 13.4 lbs (Li-NMC) Motor Weight: 16.9 lbs (Gearless)


Range Estimates are a maximum figure based on FLAT ground no pedaling 170 lb. rider 18-20 MPH steady cruise with OPTIONAL 12.5Ah Li-NMC battery.*

This upgraded kit includes EVERYTHING you need to convert your personal bike into a High Performance Electric bicycle.


For up to date lead time estimates, please click on the "Shipping" Tab above

FREE SHIPPING and NO SALES TAXES on ALL orders (in the lower 48 states)!*



As soon as you place your order you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order we automatically reach out to our suppliers for shipment. 

If your order is in stock and we process the charges to your credit card it will ship and ARRIVE within 5-7 business days from the date of shipment to your address, unless otherwise stated for specific products.  We will send you tracking information to the e-mail address you provide when checking out.  If you do not receive tracking information from us within 5 business days of your order feel free to follow up with us at

Please note we do not ship to PO Boxes. 

Please note we do not do overnight or expedited shipping, unless otherwise stated on specific products.


Please inspect the packaging of your item(s) when they arrive.  IMPORTANT:  If the item is damaged, you can sign for it as Damaged and we can then file a claim with Fedex/UPS and have the item sent back and replaced.  However, if there is damage and you sign for it as Not Damaged, then we will need for you to send information and photos on the damage so that we can work with you to resolve the situation.  You can send photos to

Upzy (formerly Super Scooter Store) does not pay or reimburse any labor costs undertaken by the customer on his/her own accord.



If you are not completely satisfied with your purchase, please email us at  We can arrange a return authorization within 15 days of the receipt of your product.  The product must be returned in the resale-able condition it arrived in, with its original boxes, for a refund or exchange (no damaged items).  Return tracking number must be provided.  

Buyer is responsible for all return shipping costs.  There is a 15% restocking fee for all returned items.

*Please note that each manufacturer's return policies may vary and we ultimately adhere to each manufacturer's return policy (they override ours).  It is important to contact us for further clarification first.



Order Has Not Shipped:  $25 administration fee when canceled.  This is to account for the manpower hours used to prepare your product, which tend to be large in size.  If product is not in stock, you will not be charged this fee.

Order Has Shipped:  Buyer is responsible for return shipping charges and a 15% restocking fee unless otherwise stated.  

Buyer's Remorse Return or Refusing A Shipment When It Arrives:  Buyer is responsible for delivery (outbound) and return shipping charges and 15% restocking fee, unless the shipment comes visibly damaged and defective.

*Please note that each manufacturer's return policies may vary and we ultimately adhere to each manufacturer's return policy (they override ours).  It is important to contact us for further clarification first.

Refunds will be issued to the original credit card or Paypal account that you used when placing your order.  



We work very hard to ensure that we offer the absolute lowest prices online.  We want you to feel confident that you are getting the lowest price for your product compared to any other online store, and we will match their lowest price accordingly.


Our 100% Price Guarantee has some limitations:

  • It does not apply to prices for our own store bought at different dates.  We reserve the right to change prices due to fluctuating sale prices from our manufacturers 
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitor website
  • The competitor must be an online store, they must not have a retail location
  • The website cannot be a discounter or auction website (eg eBay, Overstock, etc)
  • The competitor must be an Authorized Dealer for the product in question
  • The Price Match Guarantee is for the final price after shipping and sales taxes.  A lot of online stores advertise a lower price but tack on shipping charges and sales taxes in the checkout process, ultimately making their price higher than ours.  We never have hidden fees. 

Feel safe knowing that you are purchasing the best possible price online from Upzy (formerly known as Super Scooter Store) - Buy from us today!



✓ Fast, Free Shipping
✓ No Hidden Fees
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