Holiday Sale: Special pricing available on select models, colors, and sizes. Chat with us for the best price on your bike. Excludes frames & balance bikes
E-Eco Tad B1 SX Electric Tadpole Electric Recumbent Trike
Every bike is fully assembled, tuned, and test-ridden before pickup at your chosen DFW Bike Mart location.
Expected to ship within 14 days.
Professionally built and test-ridden before it ships. Arrives mostly assembled with just minimal setup needed. See Reassembly Instructions
Delivered fully assembled and tuned by Bike Mart - ready to ride right at your doorstep within 10 miles of any DFW location.
Complete your Ride
What is the Bike Mart Return policy?
What is the Bike Mart Return policy?
Bike Mart offers a 14-day return and 30-day exchange policy in effect on qualifying items. Restocking fee may apply for "At Warehouse" Items. Read More
What Financing options does Bike Mart offer?
What Financing options does Bike Mart offer?
Financing is easier than ever at Bike Mart. With Synchrony Financial, you can choose:
- 0% APR for 6 months — on orders under $999
- 0% APR for 12 months — on orders of $1,000 or more
We also support HSA/FSA Funds with TrueMed, Shop Pay Installments and PayPal Financing.
Ship
Get your bike or equipment delivered to your home directly from Bike Mart via our FedEx or USPS Carrier partners. Adult signature is required for all bike deliveries and for equipment & gear deliveries over $500.
For orders that include a bike, it will be professionally pre-built and shipped to your home with minimal assembly needed. While we try to make it as easy as possible, basic mechanical skills and proper tools are required.
If you decide to take your bike to a local bike shop for assembly, additional fees will apply.
Pickup
We’ve made it easier than ever to get the gear and bikes you love—fast. With our Buy Online, Pick Up In Store (BOPIS) option, you can shop online and pick up your items at your convenience from any of our six DFW locations.
The best part about picking up at a Bike Mart location is that you get the same high quality service with the convenience of having the exact bike or part.
Bikes / Car Racks will be assembled and installed at no extra charge and might require additional processing time for assembly.
Delivery
When you select "Home Delivery" at checkout. Your bike will be professionally assembled and the closest Bike Mart store will call you to schedule the delivery.
We offer home delivery for bike purchases only within 10 miles of a Bike Mart location. Contact us if you live beyond 10 miles and we can discuss more options. Additional fees may apply.
In stock bikes will be delivered within 7 days. Warehouse bikes will delivered within 14 days*.
E-Eco Tad B1 SX Electric Tadpole Electric Recumbent Trike
Overview
Overview
The E-Eco Tad B1 SX Electric Assist Tadpole is engineered around a proven Bafang B1 electric propulsion system featuring a 350-watt pedal-assist rear-drive motor paired with a 48V / 10.5Ah lithium-ion battery pack, delivering smooth assist and speeds of up to 15 mph. For complete peace of mind, every trike is ACT Lab tested to UL 2849, UL 2271, and CPSC standards, ensuring the highest level of safety and compliance.This is our most affordable pedal-assist tadpole trike—but “affordable” doesn’t mean “basic.” The E-Eco Tad B1 SX is equipped with rider-focused features such as a fully adjustable mesh-back saddle with a padded bottom, offering exceptional comfort and ventilation on long outings. Multiple bottle-mount locations on both the seat frame and handlebars provide generous hydration capacity for extended rides.Built for reliability, comfort, and value, the E-Eco Tad B1 SX is the perfect entry into electric-assist recumbent triking.
- 15 mph / 48 volt / 350 watt pedal-assist motor
- 48V / 10.5Ah / 504watt lithium-ion frame-mount battery with Provision to mount secondary "swap" battery
- ACT Lab tested to UL 2849 & UL 2271 standards
- Class 2 with five levels of pedal assist, walk mode and thumb throttle control
- Bottom bracket with integrated torque and cadence sensor
- Bluetooth connectability with smart phone app
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- Wheel Base: 37.5" (95cm)
- Overall Length: 70.5 - 78.75" (179 - 200cm)
- Width: 31" (79cm)
- Seat Height: 15 - 17" (38-43cm)
- Bottom Bracket Height: 13.75 - 14.25" (35-36cm)
- Weight: 68 lbs
- Weight Limit: 300 lbs
- X-Seam: 30 - 52" (76-132cm)
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- Average Speed*: 13 mph
- Range: Eco PAS, mostly pedaling 42–48 mi / Throttle-only, 23–28 mi
- * Your results may vary
- Tests based on rider and gear of 165lbs, an altitude of 800ft and flat paved surface
Technical Specifications
Technical Specifications
| Motor | Bafang B1 48V / 350W mid-mount rear hub motor – 55-60 N·m max torque |
| Pedal assist sensor | Bafang B1 bottom bracket integrated torque/cadence sensor |
| Display | Bafang B1 color display with Bluetooth and USB-C charging port for accessories |
| Throttle | B1 Removable thumb throttle |
| Battery | Bafang B1 48V / 10.5Ah (504 watt hours) li-ion battery |
| Charger | Bafang B1 2 amp smart charger (5–6 hours to fully charge from empty) |
| Speed | 15 mph maximum motor-assisted speed (Class 2) |
| Range | Range: Eco PAS, mostly pedaling 42–48 mi / Throttle-only, 23–28 mi |
| Compliance | ACT Lab tested to UL 2849 & UL 2271 standards |
| Frame | High-Tensile Steel, TIG-Welded |
| Front frame | Tadpole Crank Boom, Chromoly Steel |
| Left fork | Custom-Cast High-Tensile Steel, Threadless Stem, Disc Mount |
| Right fork | Custom-Cast High-Tensile Steel, Threadless Stem, Disc Mount |
| Rear shifter | SunRace 7-Speed Trigger Shifter |
| Rear derailleur | SunRace 7-Speed Direct Mount |
| Freewheel | SunRace (7-Speed) 13-32T |
| Crank set | B1 Crank Arm Set 170mm L&R Arms Alloy |
| Chainwheel | B1 Chainring 38T 3/32" Steel |
| Spider | B1 Spider |
| Chainguard | B1 Chainguard Double Alloy |
| Bottom bracket | Bafang B1 73 x 148mm square taper integrated torque/cadence sensor |
| Chain | K.M.C. 1/2 x 3/32" (286 Links) |
| Chain tube | Guide Tube |
| Chain tube bracket | Double Spring w/Hardware |
| Chain tube clamp | Clamp w/Hardware |
| Pedals | Resin Body, 9/16" |
| Front brake lever | Promax, w/Lock LH |
| Rear brake lever | Promax, w/Lock RH |
| Front brake | Promax Disc |
| Front brake rotor | 160mm Rotor |
| Headset | Steel, Caged Bearings, 28.6 x 34 x 30mm, Black |
| Right handlebar | Tadpole Right Handlebar w/28.6mm Steerer Clamp |
| Left handlebar | Tadpole Left Handlebar w/28.6mm Steerer Clamp |
| Grips | Locking, 130mm Left / 65mm Right |
| Front hub | Alloy, 36H x 13G Tadpole, Disc, Black |
| Front rim | 20'' x 36H x 13G, Alloy |
| Rear rim | 20'' x 36H x 13G, Alloy |
| Spokes | 13G Stainess Steel ED Blk with brass nipples (F-182 / R- 127/129mm) |
| Tires | Kwick Drumlin E-Type 20 x 1.75" Black Wall |
| Weight | 68 Lbs. |
| Weight limit | 300 Lbs. |
| Pricing & specifications | We reserve the right to modify this product’s specifications, colors, and materials without prior notice. Additionally, retail prices may vary from the Manufacturer's Suggested Retail Price (MSRP), which does not include shipping, assembly, or taxes. |
| Wheel base | 37.5" (95cm) |
| Overall length | 70.5 - 78.75" (179 - 200cm) |
| Width | 31" (79cm) |
| Seat height | 15 - 17" (38-43cm) |
| Bottom bracket height | 13.75 - 14.25" (35-36cm) |
| X-seam | 30 - 52" (76-132cm) |
| Average speed* | 13 mph |
Parts are subject to change without notice. Chat with us if you have any questions.
Why Shop at Bike Mart?
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Live Chat with Real People
Get instant advice and answers from our team of cycling experts through our online chat feature or over the phone.
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Community-Focused
We have donated over a million dollars to support our communities through charity rides, bike rallies and advocacy for more bikeable trails in Texas.
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Professional, Quality Assembly
Our bikes are expertly assembled and inspected by Bike Mart’s professionally trained staff. They ensure proper adjustments, tighten and true wheels, and get your bike ready to ride.
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Our Legacy of Excellence
With 62 years of retail experience, Bike Mart brings unparalleled expertise and dedication to serving you.
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10% off accessories with new bike purchase
Receive 10% off all accessories purchased with a new bike.
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Hassle-Free Returns
Easily initiate returns for online orders with our straightforward return policy to shop with confidence.
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Locally Owned & Operated
A family of cyclists who live and ride in your community—feel right at home.
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Free accessory installation with new bike purchase
Let our experts install your accessories at no extra cost, ensuring everything fits perfectly and is ready for your ride!
