Tributary Sus Apex Eagle US

$4,899.00 USD

~~$5,999.00 USD~~ $4,899.00 USD

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Size X-Small Small Medium Large X-Large

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

Warning for Residents of California

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Bike Key Features

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
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Product Details

Build Kit

Frameset

Frame

Tributary Aluminum
Color

Charcoal
Suspension Fork

RockShox 35 Gold, 120mm

Components

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

Drivetrain

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 kph
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

Wheels

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

Weight

Complete Bike

49.5 lb for Medium

*Specifications are subject to change without notice

Geometry

Size	X-Small	Small	Medium	Large	X-Large
A. Effective Top Tube	535.0	560.0	585.0	610.0	635.0
B. Stand Over	725.4	737.6	776.6	808.8	814.6
C. Reach	373.7	398.7	417.6	437.6	457.7
D. Stack	601.8	601.8	624.8	643.2	661.7
E. Total Seat Tube Length	380.0	405.0	460.0	500.0	520.0
F. Headtube Length	100.0	100.0	125.0	145.0	165.0
G. Headtube Angle	67.0	67.0	67.0	67.0	67.0
H. Seat Tube Angle	75.0	75.0	75.0	75.0	75.0
I. BB Drop	70.0	70.0	70.0	70.0	70.0
J. BB Height	303.5	303.5	303.5	303.5	303.5
K. Chainstay Length	445.0	445.0	445.0	445.0	445.0
L. Fork Length Axle to Crown	498.4	498.4	498.4	498.4	498.4
M. Fork Offset	51.0	51.0	51.0	51.0	51.0
N. Wheelbase	1094.0	1119.0	1148.0	1176.0	1204.0
Crank Arm Length	165.0	165.0	170.0	170.0	170.0
Handlebar Width	440.0	460.0	480.0	500.0	520.0
Recommended Rider Height	155.0 - 163.0	163.0 - 170.0	170.0 - 178.0	178.0 - 185.0	185.0
Stem Length	50.0	50.0	50.0	50.0	50.0

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 Specs

Design Wheel/Tire Sizes 29"
Max Tire Outer Diameter Tire Clearance Frame: 29 x 2.6"
Frame Construction Aluminum
Suspension Fork Length (Travel) 498mm A2C (120mm travel)
Fork Offset 51mm
Rear Spacing 148mm
Rear Axle Size M12 x 175mm, TP=1.0, TL=14
Rear Brake (Rotor) Flat mount (160–180mm rotor)
Front Brake (Rotor) Post mount (180–220mm rotor)
Headset - Upper IS52
Headset - Lower IS56
Front Spacing 15 x 110 mm
Steerer Tube 1 1/8"
Crown Race 1.5"
Seatpost 30.9mm
Dropper Post Compatible Yes
Seatpost Clamp 35.0mm
Front Derailleur Clamp N/A
Front Derailleur Type N/A
Derailluer Hanger UDH
Crankset (Max Ring) 42t
Accessory Mounts Rack Mounts Frame: Yes; Fender Mounts Frame: Yes; Downtube Accessory Mounts: None
Bottle Mounts Frame: 2

Supportive Documents

Support Document links

Additional Features

6061-T6 alloy frame

Tributary’s aluminum alloy tubing is developed specifically for the Tributary frame, and is heat-treated to T6 alloy standards for extra strength and durability.

Suspension fork

A 120mm suspension fork smooths out even the rowdiest forest roads.

Class 5™ VRS

The Class 5™ Vibration Reduction System has specially shaped seatstays with a tall, thin, vertically oriented profile that promotes vertical compliance by allowing the seatstays to "flex" outwards on impacts. The horizontally oriented chainstays work to resist torque and maintain a laterally stiff rear end. The seatstays and chainstays lack bridges, furthering the full length of the stays to contribute to flexibility. And a rear thru-axle delivers precise tracking while allowing the seatstays to provide that incredible compliance.

Bosch Performance Line Speed mid-drive system

Bosch’s Performance Line Speed with smart system is a Class 3 motor that delivers electric assist up to 28mph/45kph. The mid-drive system delivers loads of torque and range, and keeps the motor’s weight low and centered on the bike for neutral handling.

85Nm max torque

The Bosch Performance Lined Speed system delivers up to 85Nm of assist, with four customizable assist levels and an integrated speed sensor to control torque output.

625Wh internal battery

The Bosch PowerTube 625 battery offers enough range to get lost on your favorite forest roads. It’s also fully encased in the downtube for added stiffness and a nice, clean look.

Capable of up to 875Wh with range extender battery (sold separately)

The Bosch PowerMore 250 range extender battery bolts to your bottle-cage mounts for and adds 250Wh of assist. More range = more adventure.

Bosch smart system

The Bosch smart system integrates the drive unit, battery, display and control unit. Pair it with Bosch’s Ebike Flow app to customize riding assist modes, enable navigation, and automatically download software updates. Fully connected, fully in control.

Bosch BRC3100 system controller

This minimalist top-tube controller displays assist mode and battery charge level, and lets you choose your assist mode — all without cluttering your cockpit.

29 x 2.6" tire clearance

The Tributary frame fits up to a 29 x 2.6" tire (29 x 2.4" with fenders). You’ll love the traction and compliance of larger tires when blasting down rugged roads at the higher speeds ebikes allow.

Built for cargo

Tributary fits two bottles inside the frame on all sizes. For heavier touring loads, outfit Tributary with front and rear racks.

Internal Dropper Post Routing

Tributary welcomes 30.9mm dropper posts and keeps it tidy with internal cable routing. When the going gets technical, get low.

SRAM UDH Compatible

This derailleur hanger design optimizes shifting performance and makes it much easier to replace a bent or broken hanger.

FAQ

What is the Bosch Performance Line Speed mid-drive system?

Tributary uses the Bosch Performance Line Speed mid-drive system. This system features a motor built into the bike’s bottom bracket, powered by a battery in the bike’s downtube. It’s one of the lightest, most discreet ebike systems on the market. The Bosch Performance Line Speed system delivers up to 85Nm of torque and is paired with a Bosch 625Wh PowerTube 625 battery. This is a Class 3* system that only provides electric assist up to 28mph/45kph*.

For more information, visit our Why Bosch? page.

*Class 1 in Canada

**20 mph/32 kph in Canada

What is the range?

Ebike range depends on many factors, including rider and equipment weight, weather conditions, route choice, assist level, and more. Bosch’s Range Calculator offers the most accurate range estimate possible. Click through the tabs on the right to customize your inputs. In the “eBike” tab, adjust the settings as follows:

Drive: Performance Line Speed
Battery: PowerTube 625
Type of bicycle: Upright road bike
Tire tread: MTB tires (cross country)

Want to go even farther on a single charge? The Bosch PowerMore 250 range-extender battery (sold separately) can extend Tributary’s range by up to 40%.

How do I maintain my e-bike?

Maintenance on an ebike is mostly the same as any other bike, but keep these tips in mind:

More torque and more miles = more wear: Electric assist puts more strain on components and empowers you to ride more miles, so parts like your chain, brakes, and tires may wear out faster than you’re used to. Check them frequently and replace as you would on any other bike.
Washing is OK: The motor and battery on your ebike are sealed against water, so you can wash your ebike like you would a regular bike. However, avoid high-pressure hoses and keep the charging port closed to block moisture. Wipe down controllers rather than spraying them directly with water.
Battery care: Your ebike’s battery will last longer if the bike is stored in a cool, dry place. If storing the bike for long periods of time, try to keep battery charged between 30–60%. The battery will gradually lose charge, so check it periodically and charge as necessary.
Don’t try motor maintenance at home: If your ebike’s motor, battery, or other electronic components aren’t functioning properly, take them to your local authorized Salsa retailer for service — do not attempt to repair them yourself.

Is my ebike safe to keep in my home?

Yes. The batteries used in Salsa ebikes are UL2849-compliant, meaning they have been tested to the highest standards of safety to prevent electrical shock or fires. Always use the manufacturer-supplied charger for your ebike.

Do you offer touch-up paint?

No, we do not offer touch up paint. Hobby shops or automotive stores are excellent places to find paint. We suggest you test the paint on a scrap piece of metal before using it on your frame.

I crashed and dented (or cracked) my frame. Is it safe to ride?

Stop riding your frame immediately and take it to the nearest Salsa authorized dealer for inspection. A dented or cracked tube represents a structural weakening of the frame, and is a safety risk.

What is the warranty for this bike?

View Warranty

Warranty Information

All Salsa products are warranted against manufacturing defects in materials and workmanship from the date of retail purchase of the product, subject to the limitations detailed below.

Review Warranty Info

Tributary Sus Apex Eagle US