Confluence Flat Bar ESSA 8

$2,899.00 USD

~~$0.00 USD~~ $2,899.00 USD

Size X-Small Small Medium Large X-Large

Confluence Flat Bar ESSA 8 is our light gravel ebike that makes it easier to squeeze more adventures into each day. Ride to the ride, tack on those bonus miles, explore all the spur roads, or bring your mid-ride coffee setup without worrying about weight.

MAHLE’s X30 hub-drive motor is lightweight and discreet, with 45Nm of torque on tap for a confidence boost everywhere you ride. Confluence’s comfortable, stable geometry makes those extra miles and higher speeds feel natural.

Three-Pack mounts, rack mounts, and fenders mounts make Confluence the best gravel ebike for adventure; suspension fork and dropper post compatibility plus 700c x 50mm tire clearance expands your capability to cover the roughest roads out there.

The Shimano ESSA 1 x 8 drivetrain keeps things simple and dependable, just what you want when you’re focused on riding farther.

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

Bar, Stem, Seatpost
Bar, stem, and seatpost models are spec’d on bikes with the goal of making them as inclusive as possible, such as zero-rise handlebars on small flat-bar bikes to achieve proper stack height
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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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Electric Assist
It makes more rides possible
It gives riders the confidence to extend their range
It’s FUN
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Product Details

Build Kit

Frameset

Frame

Confluence 2.0
Color

Canyon Red
Fork

Confluence Carbon 2.0

Components

Headset

FSA
Seatpost

Promax 12mm setback
Stem

Salsa Guide
Grips/Bar Tape

Velo
Saddle

WTB Volt
Handlebar

Salsa Salt Flat
Lights Included

No

Drivetrain

Front Derailleur

N/A
Rear Derailleur

Shimano ESSA U2000
Cassette

Shimano HG300, 11–45t, 8-speed
Drive Type

Hub-Drive
Chain

KMC 8-speed
Crankset

Shimano ESSA U2000, 40t
Shifter

Shimano ESSA M315-8R
Brake Levers

Shimano MT200
Brake Calipers

Shimano MT201
Assist Levels

3
Rotors

Shimano RT26 (6-bolt, 180mm front, 160mm rear)
Drive Unit

MAHLE X30
Ebike Classification

Class 1
Max Assist Speed

20mph/32kmh
Motor Torque

45Nm
Max Motor Assist

250W
Battery Capacity Watt Hours

237Wh
Battery Type

Li-ion
Removable Battery

No
Battery Power Volts

36V
Estimated Charge Time

3.5 hours
Charger Included

Yes
Throttle

No
Walk Assist

Yes

Wheels

Front Tire

Teravail Washburn 700c x 50mm, wire bead
Rear Tire

Teravail Washburn 700c x 50mm, wire bead
Front Hub

WTB
Rear Hub

MAHLE X30
Rim

WTB ST i25

*Specifications are subject to change without notice

Geometry

Size	X-Small	Small	Medium	Large	X-Large
A. Effective Top Tube	550.0	570.0	600.0	625.0	650.0
B. Stand Over	631.0	669.0	731.0	770.0	809.0
C. Reach	389.8	401.3	419.9	433.5	447.4
D. Stack	523.9	551.8	589.0	626.2	662.6
E. Total Seat Tube Length	340.0	380.0	450.0	490.0	530.0
F. Headtube Length	90.0	120.0	160.0	200.0	240.0
G. Headtube Angle	68.5	68.5	68.5	68.5	68.5
H. Seat Tube Angle	73.0	73.0	73.0	73.0	73.0
I. BB Drop	70.0	70.0	70.0	70.0	70.0
K. Chainstay Length	440.0	440.0	440.0	440.0	440.0
L. Fork Length Axle to Crown	417.0	417.0	417.0	417.0	417.0
M. Fork Offset	51.0	51.0	51.0	51.0	51.0
N. Wheelbase	1057.8	1080.3	1113.6	1141.9	1170.1
Crank Arm Length	170.0	170.0	170.0	175.0	175.0
Handlebar Width	700.0	700.0	700.0	700.0	700.0
Recommended Rider Height	142.0 - 152.0	150.0 - 163.0	160.0 - 173.0	170.0 - 183.0	180.0 - 193.0
Stem Length	60.0	70.0	70.0	80.0	90.0

Measurements based on:

An unsprung bike (no sag)

Frame Specs

Design Wheel/Tire Sizes 700c
Max Tire Outer Diameter Tire Clearance Frame: 50mm
Tire Clearance Fork: 50mm
Frame Construction 6061-T6 Aluminum
Fork Construction Carbon fiber
Suspension Fork Length (Travel) 40mm
Fork Offset 51mm
Rear Spacing 136mm
Rear Axle Size 10 x 1mm
Front Brake (Rotor) 160–180mm
Headset - Upper IS41
Headset - Lower IS52
Front Spacing 100mm
Front Axle Size M12 x 120, TP = 1.5
Steerer Tube 1 1/8"
Seatpost 27.2mm
Dropper Post Compatible Yes (internal)
Seatpost Clamp 32.0mm
Front Derailleur Clamp N/A
Front Derailleur Type N/A
Derailluer Hanger MAHLE with derailleur hanger
Bottom Bracket 68mm, BSA
Crankset (Max Ring) 46t
Accessory Mounts Rack Mounts Frame: Yes
Rack Mounts Fork: No
Downtube Accessory Mounts: No
Fender Mounts Frame: Yes
Fender Mounts Fork: Yes
Bottle Mounts Frame: 2
Fork: 2 sets of Three-Pack mounts

Supportive Documents

Support Document links

Additional Features

6061-T6 aluminum frame

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

Carbon fiber fork

The Confluence 2.0 Carbon Fiber Fork is lightweight, comfortable, cargo-ready, and gives you 50mm of tire clearance to play with.

Comfortable gravel geometry

Confluence is designed for stability and confidence on gravel at the higher average speeds riders experience on ebikes. An inclusive fit approach with low standover accommodates a wide range of bodies, abilities, and fit preferences.

Suspension corrected

Confluence is designed to accommodate 40mm gravel suspension forks (sold separately).

MAHLE X30 class 1 hub-drive system

This Class 1 rear hub-drive motor delivers electric assist up to 20mph/32kph, and has a smoother top-end than the previous-generation X35+. It’s also one of the lightest ebike systems in-market at 1.9kg, and its low-profile appearance mean that Confluence looks like a regular gravel bike.

45Nm max torque

Enjoy up to 45Nm of assist that feels natural, not overwhelming. The MAHLE X30 system offers three assist levels, and sensors detect when you’re pedaling to moderate the level of support generated at the hub.

250Wh internal battery

You can’t see it, but you’ll certainly feel it. MAHLE’s 237Wh iX2 battery is nestled inside Confluence’s downtube for added security and stiffness. This battery size hits the ideal combination of efficiency and weight for what we designed Confluence to do.

Capable of up to 421Wh with range extender (sold separately)

Increase your range with MAHLE’S External Battery Ex1 range extender. Simply attach it to your bottle cage bolts for an extra 171Wh of adventure.

HMI compact remote top tube controller

Minimal and intuitive controller displays battery status and allows you to cycle through assist modes with one button.

Handlebar-mounted controls

MAHLE Duo remote lets you cycle through assist modes and more without taking your hands off the handlebar.

Connected if you want to be

The MAHLE system offers ANT+ connectivity for third party devices, and Bluetooth® for app integration. MAHLE’s MySmartBike app allows for customization, metrics, mapping, and more.

Massive 700c x 50mm tire clearance

Confluence fits up to 700c x 50mm tires front and rear so you can ride those lesser-traveled tracks. 700c x 42mm maximum tire clearance when equipped with fenders.

On-bike cargo features

Attach a rack to your Confluence for serious cargo capacity, or use the sleeker Three-Pack mounts for extra water bottles or our EXP Series Anything Cage HD to pack a cooking kit, extra layers, or whatever else you dream up.

FAQ

What is the range?

Ebike range depends on many factors, including rider and equipment weight, weather conditions, route choice, assist level and more. The MAHLE X30 system paired with MAHLE's 237Wh iX2 battery is designed to offer a range of up to 45 miles (72 kilometers) per charge under ideal conditions. MAHLE range-extender batteries (sold separately) greatly increase the ground you can cover with assist.

What is the Mahle hub-drive system?

Confluence uses the MAHLE X30 hub-drive system, which features a motor integrated in the bike’s rear hub, powered by a battery in the bike’s downtube. It’s one of the lightest, most discreet ebike systems on the market. The X30 system delivers 45Nm of torque and is paired with a 237Wh battery. This is a Class 1 system that only provides electric assist up to 20mph.

For more information, visit our Why MAHLE? page.

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?

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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

Confluence Flat Bar ESSA 8