Tributary SUS Apex Eagle Electric Road Bike
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*.
Tributary SUS Apex Eagle Electric Road Bike
Bike Key Features
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Electric Assist
It makes more rides possible It gives riders the confidence to extend their range It’s FUN
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On-Bike Storage
Adventures require gear and riders should get to choose whether they carry it on their bike or on their body
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Class 5 VRS
Comfort equates to speed and distance over rough terrain Rider benefit is inherent to the design
Overview
Overview
Tributary Apex Eagle SUS makes backcountry odysseys more accessible than ever. Our egravel geometry puts you in a stable, comfortable riding position on the 6061-T6 aluminum frame. A 120mm suspension fork and our Class 5™ VRS (vibration reduction system) devour rocks, ruts, and washboard roads. Bosch’s Performance Line Speed mid-drive system and 625Wh battery help you expand your range of operations — explore every spur, see what’s at the top of that silly-steep climb, and venture miles farther than usual in less time. Rack and Three-Pack mounts let you load up without feeling the weight penalty (be the hero who brings the cast-iron to the overnighter). SRAM’s Apex Eagle drivetrain grants you a wide-range 12-speed cassette and the joy of perfect, effortless shifts every time. Tributary Apex Eagle will show you what adventure ebikes are capable of, so you’d better start plotting.
- Meets UL 2849, and UL 2271 certification
Technical Specifications
Technical Specifications
| Frame | Tributary Aluminum |
| Color | Charcoal |
| Suspension fork | RockShox 35 Gold, 120mm |
| Headset | Acros IS52/IS52 |
| Seatpost | TranzX YSP18DL dropper, 100mm travel |
| Stem | Easton EA50 |
| Grips/bar tape | Velo anti-slip, shock-proof silicone gel tape |
| Saddle | WTB Volt Medium Steel |
| Handlebar | Salsa Cowchipper |
| Lights included | No |
| Front derailleur | N/A |
| Rear derailleur | SRAM Apex Eagle |
| Cassette | SRAM PG1210, 11–50t, 12-speed |
| Drive type | Mid-Drive |
| Chain | SRAM Apex |
| Crankset | FSA CK-762/IS |
| Shifter | SRAM Apex Eagle |
| Brake levers | SRAM Apex Eagle |
| Brake calipers | SRAM Apex Eagle |
| Assist levels | 4 |
| Rotors | SRAM Centerline, Center Lock (203mm front, 180mm rear) |
| Drive unit | Bosch Performance Line Speed with Mini Remote Dropbar and Intuvia 100 display |
| Ebike classification | Class 3 |
| Max assist speed | 28 mph / 45 km/h |
| Motor torque | 85Nm |
| Max motor assist | 340% |
| Battery capacity watt hours | 625Wh |
| Battery type | Li-Ion |
| Removable battery | Removable for service |
| Battery power volts | 36V |
| Estimated charge time | 5 hours |
| Charger included | Yes |
| Range estimate | 72 miles |
| Throttle | No |
| Walk assist | Yes |
| Front tire | Teravail Ehline 29 x 2.3", Durable casing |
| Rear tire | Teravail Ehline 29 x 2.3", Durable casing |
| Front hub | Novatec D791SB-B15-CL |
| Rear hub | Novatec D982TSB-CL-B12-11S |
| Spoke | 2.0, Black |
| Rim | WTB ST 27mm |
| Complete bike | 49.5 lb for Medium |
Parts are subject to change without notice. Chat with us if you have any questions.
Geometry
Geometry
All measurements provided in mm unless otherwise noted; head tube angles are in degrees. Measurements based on: An unsprung bike (no sag) A 29 x 2.3" tire measuring 747 mm in diameter Standover (B) for all sizes is measured vertically to top of toptube from a position
| Frame size | X-Small | Small | Medium | Large | X-Large |
| A. Effective Top Tube (mm) | 535.0 mm | 560.0 mm | 585.0 mm | 610.0 mm | 635.0 mm |
| B. Stand Over (mm) | 725.4 mm | 737.6 mm | 776.6 mm | 808.8 mm | 814.6 mm |
| C. Reach (mm) | 373.7 mm | 398.7 mm | 417.6 mm | 437.6 mm | 457.7 mm |
| D. Stack (mm) | 601.8 mm | 601.8 mm | 624.8 mm | 643.2 mm | 661.7 mm |
| E. Total Seat Tube Length (mm) | 380.0 mm | 405.0 mm | 460.0 mm | 500.0 mm | 520.0 mm |
| F. Headtube Length (mm) | 100.0 mm | 100.0 mm | 125.0 mm | 145.0 mm | 165.0 mm |
| G. Headtube Angle (degrees) | 67.0 | 67.0 | 67.0 | 67.0 | 67.0 |
| H. Seat Tube Angle (degrees) | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 |
| I. BB Drop (mm) | 70.0 mm | 70.0 mm | 70.0 mm | 70.0 mm | 70.0 mm |
| J. BB Height (mm) | 303.5 mm | 303.5 mm | 303.5 mm | 303.5 mm | 303.5 mm |
| K. Chainstay Length (mm) | 445.0 mm | 445.0 mm | 445.0 mm | 445.0 mm | 445.0 mm |
| L. Fork Length Axle to Crown (mm) | 498.4 mm | 498.4 mm | 498.4 mm | 498.4 mm | 498.4 mm |
| M. Fork Offset (mm) | 51.0 mm | 51.0 mm | 51.0 mm | 51.0 mm | 51.0 mm |
| N. Wheelbase (mm) | 1094.0 mm | 1119.0 mm | 1148.0 mm | 1176.0 mm | 1204.0 mm |
| Crank Arm Length (mm) | 165.0 mm | 165.0 mm | 170.0 mm | 170.0 mm | 170.0 mm |
| Handlebar Width (cm) | 440.0 cm | 460.0 cm | 480.0 cm | 500.0 cm | 520.0 cm |
| Recommended Rider Height (cm) | 155.0 cm - 163.0 cm | 163.0 cm - 170.0 cm | 170.0 cm - 178.0 cm | 178.0 cm - 185.0 cm | 185.0 cm |
| Stem Length (mm) | 50.0 mm | 50.0 mm | 50.0 mm | 50.0 mm | 50.0 mm |
This Geometry Chart is provided by the Manufactuer. 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!
