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X-Treme Rocky Road 48 Volt Fat Tire Electric Mountain Bicycle

X-Treme Rocky Road 48 Volt Fat Tire Electric Mountain Bicycle

Regular price
Price: $1,699.00
Regular price
List Price: $1,999.00
Sale price
Price: $1,699.00
You save: $300.00 (15%)
Why Buy From Crankworks BicyclesWhy Buy From Crankworks Bicycles

With a lot of the same features as our popular X-Treme Rubicon 48 Volt electric mountain bicycle, the Rocky Road 48 Volt electric mountain bicycle is different in that it comes standard with a 48 Volt 10 Ah lithium battery but there is an option to upgrade to a 48 Volt 17 Ah lithium battery which offers the benefit of increasing your riding distance by 60-65%. This means you can get up to 115 miles per charge (depending on rider weight, terrain and conditions) while the standard battery allows you to ride up to 70+ miles per charge when using the low setting on the Smart Power Assist System (PSAS). There is also a USB phone charging port on the PSAS. 

The 500 Watts from the high torque zero resistance clutch motor powered by the 48 Volt lithium battery makes the Rocky Road no joke wherever you need to go. This bike has been tested and can climb a 5-7% grade continuously for 45 minutes at 18 mph! Add fat tires, a mountain bike seat and true VELO brand hand grips and this e bike is the whole package!

Also check out our X-Treme FAQ page here.


Colors: Black, White

Motor: Bafang 500W Zero Resistance Rear Hub Motor with Clutch

Battery: 48V, 10.4 AH Lithium Ion - inside bicycle frame -accessible when bicycle in folded position

Battery Charger: 48 Volt Output UL Certified Charger (charging time +/- 3 Hours)

Range: Up to 70 mile Range Using Low PAS & Flat Terrain while pedal assisting

Gearing/Shifting: 7 Speed Shimano Tourney Gears & Shifter

Tire Size: Kenda Beach Cruiser Tire and Tube - 26 x 2.10 inch on aluminum wheels

Throttle Type: Variable Speed Thumb Throttle-SPAS Power Assisted -Pedal Power

LCD Display: King. Meter LCD Smart PAS Digital System with USB Phone Charging


PAS System: On/Off Button with Battery Indicator located on right side of handlebar

Controller: 48 Volt 15 Amp Sealed Smart Controller

Speed: 25 MPH on PAS/ Throttle Only- Much faster under self power - 45 MPH

Frame Type/Size: 6061- T6 Temper Aluminum Alloy - Very Light Weight

Forks: Over-sized MOZO Hydraulic Front Forks

Suspension: Front Hydraulic Suspension included and KS Rear Shock Suspension

Front Sprocket: Aluminum alloy Sprocket

Derailleur: Shimano 9-Speed Atlus Gears & Shifter

Seat & Post: Aluminum Alloy Adjustable Seat Post & Velo Mountain Bike Seat

Quick Release: Front and Rear Wheels have Quick Release Axles-Flip Lever

Gooseneck: Aluminum VP

Handlebars: Aluminum Alloy Mountain Bike Handle Bars

Brakes: Tektro Disc Brakes

Pedals: Wellgo Aluminum Pedal Set

Front Wheel: Joytech Quick Release Hub

Headlight: Battery Operated Snap-On LED (Not covered under warranty)

Accessories: Drink Holder on Handle Bars Included

Bicycle Measurements: Max Seat Height = 40.5 inches/Min. Seat Height = 32.5 inches/ Handlebar Height: 41.75 inches

Cargo Rack: Not included. Can purchase separately.

Maximum Rider Weight: 350 Lbs

Bicycle Weight: 67 Lbs

Warranty:  Click Here for X-Treme Warranty Information




Order Confirmation:

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 to confirm that it is in stock and available for immediate shipment. If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at  

Damage/Loss During Shipping

If an item is damaged or loss during shipping please contact the manufacturer directly and they will provide you with assistance getting a replacement or repair. The manufacturer's website address and/or phone # will be listed in the manual that's included with your e-bike. If for some reason the manufacturer is unable or unwilling to help you, please contact us for assistance.


Price Match

We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date we'll refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly. 

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitors website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, etc...)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax 



Customer Reviews

Based on 2 reviews
Tim Mosier
See You on the Hills!

The hills are definitely not a problem on this bike. I did upgrade to the 17ah battery so I could do more distance and I'm glad I did. Great bike for the money.

John K.
Love this bike!

Really comfortable and wicked fast! Love the fat tires.


Add customer reviews and testimonialsI love exploring and my e-bike allows me to get out so much farther for longer without expending more energy. Thanks Crankworks for the cool mtb e-bike. to showcase your store’s happy customers.

Alex M.

I find myself getting out more often with Sam and we both get great exercise. I love the fact that I can pack his and my stuff on my rack!

Heather W.

Our group rides have definitely changed since I got my QuietKat Warrior. It's become much easier as an "older dude" to keep up with the youngsters out in the woods! Loving my e-mtb!

Jay F.

I love doing a 12 mile bike loop around our lake every weekend, but it was starting to be a bit much for my knees & back to handle. The electric assist on my e-bike has been a god send! Thank you so much for making my favorite weekly activity possible & enjoyable again!!

Sally M.