Birch Grolar Dual-Motor Hunting Electric Fat Tire Bike
Availability: In Stock
Shipping Time: Within 2 business days
Fall Riding Code: [FALL200]
Overview
Why Grolar?
The name "Grolar" is inspired by the hybrid grolar bear, combining the strength and adaptability of both grizzly and polar bears. Our hunting bikes embody these qualities, designed to conquer any terrain with resilience and reliability.
Specifications
| Motor: Front & rear dual 750W hub motors | Speed Shift: Shimano 9 speed (M4000) |
| Battery: 48V 25Ah, 1200Wh | Speed: 20-28 mph |
| Suspension: 180mm front inverted suspension | Ride Modes: Pedaling, pedal assist, throttle |
| Brake: 180mm opposed dual-piston hydraulic brake | Class Level: 5 |
| Tires: 26×4 inch puncture proof tires |
Range: 85 miles for pedal assist, 45 miles for throttle |
| Max Torque: 160 Nm | Display: 3.5 inch, full-color LED |
| Frame: 6061 aluminium alloy | Throttle: Half twist |
| Payload: 400 lbs | Sensor: TORG2B Centre-mounted Torque Sensor |
| Controller: Lishui 48V 25A Dual Controller | Weight: 109 lb.(with battery) |
| Battery Weight: 14 lb. |
Components
| Frame：6061-T6 Aluminum frame | Handlebar Pole：HBC1028 22.2-31.8*740mm |
| Battery：48V 25Ah (1200Wh) | Crankset：38T-170mm aluminium alloy |
| Motor：Shengyi | Groupset：Shimanoo ACSLG3009136 |
| Controller：Lishui 48V 25A Dual Controller | Pedals：Alloy with reflectors |
| Tyres：26"*4" CST CST C1752 puncture-proof wide tyres | Headlight：QD472 48V LED |
| Rear lights：WD186 integrated rear tail lights | Seat：Extra wide and large soft seat cushion |
| Cassette：Shimano 9-speed (Shimano CUES) | Stand：MCD-22BA aluminium |
| Chain：Z9 GY/BR PPO | Wheels：6061 aluminium alloy rims |
| Brake：180MM TEKTRO E3520 1800 hydraulic brake | Rotors：Shimano |
| Fork：HXF-D1171LR-O 180mm Pneumatic Double Shoulder Inverted Shock Absorber |
Why Grolar?
The name "Grolar" is inspired by the hybrid grolar bear, combining the strength and adaptability of both grizzly and polar bears. Our hunting bikes embody these qualities, designed to conquer any terrain with resilience and reliability.
| Motor: Front & rear dual 750W hub motors | Speed Shift: Shimano 9 speed (M4000) |
| Battery: 48V 25Ah, 1200Wh | Speed: 20-28 mph |
| Suspension: 180mm front inverted suspension | Ride Modes: Pedaling, pedal assist, throttle |
| Brake: 180mm opposed dual-piston hydraulic brake | Class Level: 5 |
| Tires: 26×4 inch puncture proof tires |
Range: 85 miles for pedal assist, 45 miles for throttle |
| Max Torque: 160 Nm | Display: 3.5 inch, full-color LED |
| Frame: 6061 aluminium alloy | Throttle: Half twist |
| Payload: 400 lbs | Sensor: TORG2B Centre-mounted Torque Sensor |
| Controller: Lishui 48V 25A Dual Controller | Weight: 109 lb.(with battery) |
| Battery Weight: 14 lb. |
| Frame：6061-T6 Aluminum frame | Handlebar Pole：HBC1028 22.2-31.8*740mm |
| Battery：48V 25Ah (1200Wh) | Crankset：38T-170mm aluminium alloy |
| Motor：Shengyi | Groupset：Shimanoo ACSLG3009136 |
| Controller：Lishui 48V 25A Dual Controller | Pedals：Alloy with reflectors |
| Tyres：26"*4" CST CST C1752 puncture-proof wide tyres | Headlight：QD472 48V LED |
| Rear lights：WD186 integrated rear tail lights | Seat：Extra wide and large soft seat cushion |
| Cassette：Shimano 9-speed (Shimano CUES) | Stand：MCD-22BA aluminium |
| Chain：Z9 GY/BR PPO | Wheels：6061 aluminium alloy rims |
| Brake：180MM TEKTRO E3520 1800 hydraulic brake | Rotors：Shimano |
| Fork：HXF-D1171LR-O 180mm Pneumatic Double Shoulder Inverted Shock Absorber |
Dual 750W Motors
With a max 1500W of power and 160Nm torque, we've doubled the strength of conventional ebikes. Our dual motors instantly switch from front-motor, rear-motor, dual-motor, or self-adaptive drive for your benefit, allowing you to tackle all terrains.
160 Nm
Torque Sensor
Dual 750W Motors
With a max 1500W of power and 160Nm torque, we've doubled the strength of conventional ebikes. Our dual motors instantly switch from front-motor, rear-motor, dual-motor, or self-adaptive drive for your benefit, allowing you to tackle all terrains.
160 Nm
Torque Sensor
Large Capacity Battery
Detachable 1200Wh large-capacity ternary lithium batteries grant the all-terrain Ebike 85 miles of pedal assistance or 45 miles of throttle drive per charge.
Climb Higher, Explore Further
The Grolar triumphs over 30%- 40% degree slopes without any difficulties, and takes on 45% degree angles effortlessly through pedal assist mode.
Extensive Reviews
What professional media really thinks of us
Seamlessly merging the worlds of electric mountain bikes and the intense demands of hunting, the Grolar Dual 750w E-Bike stands as a testament to Birch’s vision of delivering excellence in both design and function.”
The Birch Hunter Grolar eBike is more than just another electric bike; it's a purpose-built machine that could potentially revolutionize how hunters and outdoor enthusiasts approach their passions. ”
Emerging e-bike brand Birch introduces its newest, game-changing electric hunting bike, blending cutting-edge e-bike technology with endurance, tenacity, and robust cargo capacity for relentless pursuit. “
The Grolar answers the need for versatility, reliability, and endurance with its ability to address diverse terrain challenges, cargo limitations, and the dreaded range anxiety. ”
The Birch Grolar is a hunting ebike that can handle anything you can throw at it. It has up to a 85 mile range, a top speed of 28 mph paired with a great braking system, is built to last, and provides a smooth ride.”
Details That Satisfy Your Every Need
From handlebar to drivetrain, every detail is carefully crafted to create the ultimate hunting experience.
LED Headlights
Increase visibility and safety with 48V LED headlights headlights designed to light up the darkest paths.
Half-Twist Throttle
The half-twist throttle offers intuitive control and ease of use, allowing for more precise and flexible acceleration and deceleration.
750W Dual Motors
Experience maximized performance with front- and rear 750W motors offering 160Nm of torque.
CST Puncture Proof Fat Tire
Engineered to withstand desert sands and rugged trails, this tire features advanced puncture-resistant technology, ensuring reliability and safety during your hunting expeditions.
6061 Aluminium Crank
6061 aluminum alloy is highly resistant to corrosion, protecting the crank from oxidation and moisture, thus increasing durability and longevity.
Extraordinary Off-Road Performance
The Grolar is for hunters, by hunters. We know the pain points of off-road traversing, and we’re here to solve it.
Detail Close-ups
Torque Sensor
The torque sensor quickly senses the pedal pressure and responds with accurate assistance, offering swift and smooth acceleration.
3.5 in. Full Color LED Display
3.5 in. full color LED screen presents detailed riding data, making it easy to monitor during your ride.
Shimano 9 Speed Shift
Utilizes Shimano 9-speed shift and 5-level throttle for flexible speed control in all road conditions.
Strong Rear Rack
23% more load capacity than competitors, Birch can carry more equipment and prey.
Saddle Tube Air Suspension
Enjoy a smoother ride with our saddle-tube air-suspension enhancing shock-absorption for your ebike.
Brake Light
Equipped with advanced brake lights to ensure softly by alerting others when you slow down or stop, even in low-light conditions.
Easy to Assemble
Geometry
Recommended Rider Height: 5'1" ~ 6'5"
| A--Total length: 2050 mm | F--Chain stay length: 530 mm |
| B--Handlebar height: 1270 mm | G--Standover height: 750 mm |
| C-- Wheelbase: 1307 mm | H--Effective top tube length: 24.4 mm |
| D--Minimum seat height: 650 mm | I--Head angle: 160 mm |
| E--Maximum seat height: 805 mm | J--Handlebar length: 740 mm |
Specifications
| Motor: Front & rear dual 750W hub motors | Speed Shift: Shimano 9 speed (M4000) |
| Battery: 48V 25Ah, 1200Wh | Speed: 20-28 mph |
| Suspension: 180mm front inverted suspension | Ride Modes: Pedaling, pedal assist, throttle |
| Brake: 180mm opposed dual-piston hydraulic brake | Class Level: 5 |
| Tires: 26×4 inch puncture proof tires |
Range: 85 miles for pedal assist, 45 miles for throttle |
| Max Torque: 160 Nm | Display: 3.5 inch, full-color LED |
| Frame: 6061 aluminium alloy | Throttle: Half twist |
| Payload: 400 lbs | Sensor: TORG2B Centre-mounted Torque Sensor |
| Controller: Lishui 48V 25A Dual Controller | Weight: 109 lb.(with battery) |
| Battery Weight: 14 lb. |
Components
| Frame：6061-T6 Aluminum frame | Handlebar Pole：HBC1028 22.2-31.8*740mm |
| Battery：48V 25Ah (1200Wh) | Crankset：38T-170mm aluminium alloy |
| Motor：Shengyi | Groupset：Shimanoo ACSLG3009136 |
| Controller：Lishui 48V 25A Dual Controller | Pedals：Alloy with reflectors |
| Tyres：26"*4" CST CST C1752 puncture-proof wide tyres | Headlight：QD472 48V LED |
| Rear lights：WD186 integrated rear tail lights | Seat：Extra wide and large soft seat cushion |
| Cassette：Shimano 9-speed (Shimano CUES) | Stand：MCD-22BA aluminium |
| Chain：Z9 GY/BR PPO | Wheels：6061 aluminium alloy rims |
| Brake：180MM TEKTRO E3520 1800 hydraulic brake | Rotors：Shimano |
| Fork：HXF-D1171LR-O 180mm Pneumatic Double Shoulder Inverted Shock Absorber |
Recommended Rider Height: 5'1" ~ 6'5"
| A--Total length: 2050 mm | F--Chain stay length: 530 mm |
| B--Handlebar height: 1270 mm | G--Standover height: 750 mm |
| C-- Wheelbase: 1307 mm | H--Effective top tube length: 24.4 mm |
| D--Minimum seat height: 650 mm | I--Head angle: 160 mm |
| E--Maximum seat height: 805 mm | J--Handlebar length: 740 mm |
| Motor: Front & rear dual 750W hub motors | Speed Shift: Shimano 9 speed (M4000) |
| Battery: 48V 25Ah, 1200Wh | Speed: 20-28 mph |
| Suspension: 180mm front inverted suspension | Ride Modes: Pedaling, pedal assist, throttle |
| Brake: 180mm opposed dual-piston hydraulic brake | Class Level: 5 |
| Tires: 26×4 inch puncture proof tires |
Range: 85 miles for pedal assist, 45 miles for throttle |
| Max Torque: 160 Nm | Display: 3.5 inch, full-color LED |
| Frame: 6061 aluminium alloy | Throttle: Half twist |
| Payload: 400 lbs | Sensor: TORG2B Centre-mounted Torque Sensor |
| Controller: Lishui 48V 25A Dual Controller | Weight: 109 lb.(with battery) |
| Battery Weight: 14 lb. |
| Frame：6061-T6 Aluminum frame | Handlebar Pole：HBC1028 22.2-31.8*740mm |
| Battery：48V 25Ah (1200Wh) | Crankset：38T-170mm aluminium alloy |
| Motor：Shengyi | Groupset：Shimanoo ACSLG3009136 |
| Controller：Lishui 48V 25A Dual Controller | Pedals：Alloy with reflectors |
| Tyres：26"*4" CST CST C1752 puncture-proof wide tyres | Headlight：QD472 48V LED |
| Rear lights：WD186 integrated rear tail lights | Seat：Extra wide and large soft seat cushion |
| Cassette：Shimano 9-speed (Shimano CUES) | Stand：MCD-22BA aluminium |
| Chain：Z9 GY/BR PPO | Wheels：6061 aluminium alloy rims |
| Brake：180MM TEKTRO E3520 1800 hydraulic brake | Rotors：Shimano |
| Fork：HXF-D1171LR-O 180mm Pneumatic Double Shoulder Inverted Shock Absorber |
FAQ
When will it be shipped?
All orders placed during the pre-sale period will be dispatched in early September and will arrive in 5-7 days.
How long does the bike take to assemble?
Our bikes typically take 20-30 minutes to assemble. Is assembly taking too long? Check out the Birch official instruction video.
What does Grolar mean?
Grolar is a hybrid of a grizzly and polar bear. We wanted our bikes to have a name that conveys power, strength, and resiliency, and we couldn’t think of a better creature to describe the beast that is our product. Hence, the Grolar: a fusion of tenacity, might, and adventure.
How does the Grolar conquer distances up to 85 miles?
The Grolar achieves distances of up to 85 miles due to its mighty 1000Wh battery, five levels of pedal assistance, and nine-speed gear shift—all synchronized with your adventurous spirit to push the boundaries of what’s possible.
Can I double down on power with dual batteries?
Yes! We've engineered Grolar with the future in mind, offering an interface for dual batteries. Ride worry-free with two batteries propelling you up to 110 miles into the unknown. While we’re still waiting to debut our second battery, stay tuned to learn more!
I want more Birch points to get more discounts. How do I redeem my Birch points?
There are several ways to acquire Birch points, from special events like our Ride & Earn to other one-time offers. Find out how to redeem your Birch points here.