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2020 Synergy

Kahuna

A 20″ aluminum frame folding e-bike with modest components and tektro hydraulic disc brakes.

Manufacturer Price

$1,899
Weight65.1 lbs  
FrameAluminum
SuspensionFull, 60 / 60mm
Wheels20″ Aluminum
Drivetrain1 × 7
GroupsetShimano
MotorBafang 750W 80Nm hub-drive
Battery672Wh
BrakesTektro Hydraulic Disc
Learn about Synergy
Where to Buy
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

23 mph

Kahuna

22 mph

Similar Bikes

Highest gear

(descending)

Sizing
17"

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
Electric Bike Review
Synergy Kahuna Review - Prices, Specs, Videos, Photos

Apr 2020

Price: $1899.00 | Model Year: 2020 A full suspension folding fat tire electric bike, available in three timeless colors (dark blue, black, white). Powerful 750 watt Bafang geared hub motor feels very zippy and capable. Hydraulic disc brakes require less hand effort and offer adjustable-reach levers. Both brake levers also have motor inhibitors for safer stopping. Bright dual-beam headlight keeps you seen from multiple angles. No reflective paint or tire stripes here, but the white frame increases rider visibility. Optional $120 rear rack comes with a light mounted at the Back. They include a decent phone mount for free, Synergy also sells aluminum alloy and plastic fenders for $100 or rack fender combo for $150. A full suspension folding fat tire electric bike, available in three timeless colors (dark blue, black, white). Powerful 750 watt Bafang geared hub motor feels very zippy and capable. Hydraulic disc brakes require less hand effort and offer adjustable-reach levers. Both brake levers also have motor inhibitors for safer stopping.

Observations
  • A full suspension folding fat tire electric bike, available in three timeless colors (dark blue, black, white). Powerful 750 watt Bafang geared hub motor feels very zippy and capable. Hydraulic disc brakes require less hand effort and offer adjustable-reach levers. Both brake levers also have motor inhibitors for safer stopping

  • Bright dual-beam headlight keeps you seen from multiple angles. No reflective paint or tire stripes here, but the white frame increases rider visibility. Optional $120 rear rack comes with a light mounted at the Back. They include a decent phone mount for free, Synergy also sells aluminum alloy and plastic fenders for $100 or rack fender combo for $150

  • Sturdy and large folding aluminum alloy pedals from Wellgo, great kickstand placement (with adjustable length), decent Shimano Altus derailleur, limited 14-28 tooth freewheel and slightly large 54 tooth chainring makes starting and climbing a bit slow and difficult

  • They key must be inserted and left in the frame in order to power the bike on... and the locking core is below the main tube, making it difficult to see and reach. Noticed some delay in starting and stopping using pedal assist, even though the cadence sensor hardware looked pretty nice (compact sealed design at bottom bracket), no torque arm or derailleur guard

Read Review

Specs
Build
Frame

6061 Aluminum Alloy

Fork

Kahuna Branded Coil Suspension, 60mm Travel, Compression Adjust with Lockout, Preload Adjust, 32mm Stanchions, 135mm Hub Spacing, 9mm Threaded Axle with 15mm Nuts

Travel60mm

Spring TypeCoil

Shock

Single Joint Swing Arm with Unbranded Shock Absorber, 60mm Travel, 175mm Hub Spacing, 12mm Threaded Slotted Axle with 18mm Nuts

Travel60mm

Headset

Semi-Integrated, Sealed Cartridge, 1-1/8" Straight

Stem

Aluminum Alloy, Folding, 250mm Base Height, Additional Telescoping Height: 0mm to 100mm, One 5mm Spacer, 31.8mm Clamp

Handlebar

Aluminum Alloy, Low-Rise, 640mm Length

Saddle

Chaunts, Vented, Active

Seatpost

Aluminum Alloy, Single Bolt Clamp

TypeRigid

Pedals

Wellgo F265 Aluminum Alloy Folding Platform with Reflectors, CrMo Axle, Black

Grips

Generic, Flat Rubber, Non-Locking

Groupset
Crank

Forged Aluminum Alloy, 170mm Length, 54 Tooth Chainring with Aluminum Alloy Guard

Shifters

Shimano Trigger Shifter on Right (One-Way High, Three-Shift Low)

Cassette

7 Speed 1x7 Shimano MF-TZ500-7 14-28 Tooth Freewheel, Shimano Altus Derailleur

Brakes

Tektro Hydraulic Disc with 160mm Rotors, Dual Piston Calipers, Three-Finger Tektro Levers with Motor Inhibitors and Adjustable Reach

TypeTektro Hydraulic Disc

Wheels
Rims

Aluminum Alloy, Double Wall, 10mm Outer Width, 36 Hole Front, 32 Hole Rear

Spokes

Stainless Steel, 13 Gauge Front, 12 Gauge Rear, Black with Nipples

Tires

Kenda Gigas, 20" x 4" (98-406)

Electric Components
Motor

Weight: 8.7 lbs (3.94 kg), Brand: Bafang, Type: Rear-Mounted Geared Hub, Nominal Output: 750 watts, Torque: 80 Newton meters

Battery

Weight: 8.3 lbs (3.76 kg), Brand: Samsung 18650, Voltage: 48 volts, Amp Hours: 14 ah, Watt Hours: 672 wh, Chemistry: Lithium-ion

Display

Bigstone C500B-LCD, Fixed, Adjustable-Angle, Backlit, Grayscale 3" LCD, Buttons: Power, Set, +, -, Lights: Tap Power Button, Walk Mode: Hold - Button, Settings: Hold Set

Rider Notes
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First added September 3

Last updated September 3

Not listed for 1,370 days