Details
Confluence Flat Bar Altus opens up more ride opportunities with a MAHLE hub-drive electric assist good for 40Nm of torque. This e-gravel bike features comfortable, confident upright geometry and a flat handlebar for leverage and control. The aluminum frame and carbon fork strike a balance of durability and performance you’ll appreciate, with frame and fork cargo mounts to keep you fueled on those longer rides, or to load up with bikepacking gear. Shimano’s Altus 1x9 drivetrain is a proven workhorse that will get you through any ride without a fuss. Charge Your Adventure with Confluence Flat Bar Altus.
Features:
- 6061-T6 alloy 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 Carbon fork is lightweight, comfortable, cargo-ready, and gives you loads of tire clearance to play with.
- MAHLE X35+ Class 1 hub-drive system
This Class 1 rear hub-drive motor delivers electric assist up to 20mph/32kph. It’s one of the lightest e-bike systems on the market, and its low-profile appearance means that Confluence looks like a regular gravel bike.
- 40Nm max torque
Up to 40Nm of assist that feels natural, not overwhelming. The MAHLE X35+ 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 250Wh battery is nestled inside Confluence’s downtube. This battery size hits the ideal combination of efficiency and weight for what we designed Confluence to do.
- Capable of up to 458Wh with MAHLE Range Extender battery? (sold separately)
Easily increase your range for bigger adventures with a Range Extender battery available from MAHLE.
- iWOC One compact remote top tube controller
Minimal and intuitive controller displays battery status and allows you to cycle through assist modes with one button.
- 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, so you can ride those lesser-traveled tracks. 700c x 42mm maximum tire clearance when equipped with fenders.
- On-bike cargo features
Attach front and rear racks 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 dream up.
Frame Size | X-Small | Small | Medium | Large | X-Large |
---|---|---|---|---|---|
A. Effective Top Tube (mm) | 550 | 570 | 600 | 625 | 650 |
B. Stand Over (mm) | 622 | 959 | 721 | 761 | 800 |
C. Reach (mm) | 394 | 406 | 424 | 438 | 451 |
D. Stack (mm) | 510 | 538 | 575 | 613 | 650 |
E. Total Seat Tube Length (mm) | 340 | 380 | 450 | 490 | 530 |
F. Headtube Length (mm) | 90 | 120 | 160 | 200 | 240 |
G. Headtube Angle | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
H. Seat Tube Angle | 73° | 73° | 73° | 73° | 73° |
I. BB Drop (mm) | 70 | 70 | 70 | 70 | 70 |
J. BB Height (mm) | 285 | 285 | 285 | 285 | 285 |
K. Chainstay Length (mm) | 440 | 440 | 440 | 440 | 440 |
L. Fork Length Axle to Crown (mm) | 402 | 402 | 402 | 402 | 402 |
M. Fork Offset (mm) | 50 | 50 | 50 | 50 | 50 |
N. Wheelbase (mm) | 1056 | 1078 | 1111 | 1140 | 1168 |
Crank Arm Length (mm) | 165 | 170 | 172.5 | 172.5 | 175 |
Handlebar Width (mm) | 700 | 700 | 700 | 700 | 700 |
Stem Length (mm) | 60 | 70 | 70 | 80 | 90 |
Frame Size | Recommended Rider Height (cm) | Recommended Rider Height (in) |
---|---|---|
X-Small | 142 - 150 | 4'9" - 4'11" |
Small | 152 - 163 | 5'0" - 5'4" |
Medium | 163 - 173 | 5'4" - 5'8" |
Large | 173 - 183 | 5'8" - 6'0" |
X-Large | 183 - 193 | 6'0" - 6'6" |
Specs
Frame | Confluence |
---|---|
Fork | Confluence Carbon |
Rims | WTB ST i23, 32h |
Hubs |
Front: WTB Serra Rear: MAHLE X35+ |
Spokes | Straight gauge, black |
Tires | Teravail Washburn 700c x 42mm, Durable casing, wire bead |
Bottom Bracket | RPM Cartridge Bottom Bracket |
Crankset | FSA Vero Pro, 40t |
Shifters | Shimano Altus M2010 |
Rear Derailleur | Shimano Altus M2000 |
Cassette/Freewheel | Shimano HG200-9, 9-speed, 11–36t |
Chain | KMC Z9 |
Brakes | Tektro MD-U510/MD-U310 |
Rotors | Tektro TR160-22, 160 mm, 6-bolt |
Brake Levers | Tektro RS360A |
Handlebars | Salsa Salt Flat |
Tape/Grips | Velo VLG-311D2 |
Stem | Salsa Guide |
Headset | FSA |
Seatpost | Promax SP-2016 |
Saddle | WTB Volt |
Pedals | Sold Separately |
Motor | MAHLE X35+ |
Battery | MAHLE’s 250Wh |
Controller/Display | iWOC One |
* Subject to change without notice.
Part Numbers
Option | UPC | MPN |
---|---|---|
Black / X-Small | 657993357279 | BK2513 |
Black / Small | 657993357262 | BK2515 |
Black / Medium | 657993357255 | BK2517 |
Black / Large | 657993357248 | BK2518 |
Black / X-Large | 657993357231 | BK2519 |