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Biktrix Juggernaut Ultra FS Pro 3 Fat Full Suspension Fat Tire Electric Bike

Class 2
801-1,000 Wh
251-300 lb max load
Up to 20 mph

SVT Score, Mid

Usability6.3/10Social4.5/10The SVT Score is placed on its category's range

Versus

SVT SCORESRead review

A full-suspension fat tire e-bike with a 160 Nm mid-drive, a 140 mm air fork and a 910 Wh battery; its weight with battery is not published.

$3,999

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SKU: JULFSPL264BA2 Category: Electric Bikes Brand: Biktrix

Usability

6.3 out of 10

Battery6910 Wh (52 V, 17.5 Ah) on the fat tire ladder

Motor10160 Nm from the Bafang Ultra M620 mid-drive

Rating: 1,000 W nominal; sold limited to 20 mph and 500 W, no-limit option for off-road use

Ride Hardware9hydraulic discs, 180 mm rotors, 140 mm air fork, rear shock, torque sensor

Features3colour display, throttle

Option: rack and fender $99

Better on featuresVelotric Nomad 2X fat-tire bikeA removable battery. $2,299Scores 10.0

Verification4Bafang M620 drive system on UL file QGNS2.E519932 (names no bike); no Biktrix record

Searched: UL Certipedia Intertek SGS TÜV SÜD CPSC Health Canada
Record: UL Product iQ, ANSI/CAN/UL 2849 drive system (QGNS2, Electrical Systems for E-Bikes - Component), MM G510.1000.C (controller CR R10M.1000.FC) = Bafang M620 Ultra, Bafang Electric

Better on verificationPuckipuppy GoldenR Pro Dual-Motor E-Bike$1,999.99Scores 6.0

Warranty & Support5two years on motor and battery (US terms)

Better on warranty & supportPedego Element 2 Fat Tire BikeThe parts. $2,195Scores 9.0

Price

Option: 26x4.9 tires $5,999.00; Powder Coated $4,299.00

Strengths

Strong hill-climbing torque
Fat tires handle sand and snow
Big battery for long rides
Torque sensor gives a natural assist
Full suspension soaks up rough trails

Drawbacks

Rack and fender sold separately
Headlight only with no taillight
Low load rating
No UL safety listing found
Warranty void if motor settings change

Verdict

A capable full-suspension fat bike for rough ground, but no rack and heavy

Social score

4.5 out of 10

RedditBrand-level3 out of 10

In an r/ebikes thread on Biktrix, a Juggernaut Ultra Duo 3 owner describes eight months of failed motor warranty repairs and another says the brand deletes negative comments (Sep 2022)|An r/ebikes owner of the original Juggernaut Ultra FS praised easy assembly and the ride (Sep 2018)

GoogleProduct-line6 out of 10

Two forum owners of the FS Pro 3: an ebikesforum.com owner says it has been great after a noisy first ride (Nov 2022)
An Electric Bike Forums owner of the 27.5x3 build found the front brake weak and the headset loose (Jul 2025)

YouTubeNot scored

The YouTube pool is blank: the videos found are ElectricBikeReview.com's manufacturer-paid Ultra Duo 4 review, a prototype FS Pro video and owner clips that do not say how the bike was obtained (October 2026).

AmazonNot scored

The Amazon pool is blank: the searches of Amazon US turned up no listing sold by Biktrix or an official Biktrix store (October 2026).

User reviewsNot scored

The retailer pool is blank: none of Walmart, Best Buy, Target, Costco, Dick's Sporting Goods, REI, Home Depot and Lowe's lists any Biktrix e-bike in its own site search, so no retailer review feed exists for this model (October 2026).

Reviews

The Trustpilot page for biktrix.com is claimed and holds 0 reviews (October 2026).

Track record

The BBB rates Biktrix Enterprises Inc. of Saskatoon B-, not accredited, with 2 complaints in the last three years (October 2026).
Searches of CPSC and Health Canada recall records turned up no Biktrix e-bike or battery recall (October 2026).

Not countedExcluded

Not counted in any pool: Biktrix's own site reviews and Q&A, its YouTube videos, its Facebook pages and groups, and posts by its staff.

Specs

TypeFat Tire
E-Bike ClassClass 2
Battery801-1,000 Wh
MotorMid-drive
Top SpeedUp to 20 mph
Max Rider Load251-300 lb
BrakesHydraulic disc
SuspensionFull
FoldingDoes not fold
CertificationsNone verifiable
Warranty2 Years

Show 5 moreShow fewer

Not published by Biktrix: claimed range and weight.

Not checked: The weight with its battery, not published

At a glance

RockShox Monarch RL shock
SRAM NX 11-speed
197 mm thru-axle rear hub

Company

The BIKTRIX US trademark is registered to Biktrix Enterprises Inc. of Saskatoon, Saskatchewan, which receives legal notices under the US terms.

Where it sells

Biktrix e-bikes are sold in the US by Biktrix USA Inc., a Delaware corporation operating as Biktrix Electric Bikes.
The bikes are sold through biktrix.com in US dollars and ship to the US by FedEx from Saskatoon, free on orders over $1,000.
The e-bikes it sells run from a 350 W step-thru commuter to carbon full-suspension fat bikes.
None of Walmart, Best Buy, Target, Costco, Dick's Sporting Goods, REI, Home Depot and Lowe's sells Biktrix e-bikes, either as the seller or through a marketplace listing; Biktrix sells its e-bikes through its own store (October 2026).

Description

The Biktrix Juggernaut Ultra FS Pro 3 Fat is a full-suspension fat tire e-bike with a Bafang Ultra M620 mid-drive rated 1,000 W and 160 Nm and a 52 V battery of 910 Wh.

It has dual-piston hydraulic disc brakes with 180 mm rotors, a 140 mm inverted air fork, a RockShox Monarch RL rear shock, torque and cadence sensors and Chaoyang 26x4 tires. It has a DPC-18 display, an integrated headlight, a thumb throttle and a SRAM NX 11-speed drivetrain; a rack and fender add $99.

Biktrix lists 71.9 lb without the battery in large and a 265 lb load rating. The listing sells it limited to 20 mph and 500 W, with a no-limit option offered for off-road use or private land.

The 26x4.9 Big Daddy II tire build is $5,999.00, the Powder Coated finish $4,299.00, and a 52 V, 17 Ah (884 Wh) range extender is offered.