Merida eBig.Nine 300 SE eMTB | Accessible Power & Trail Versatility
You do not need to spend a fortune to enjoy high-quality electric mountain biking. The Merida eBig.Nine 300 SE delivers a premium, smooth-rolling ride designed to conquer everything from technical weekend singletrack to your rugged daily office commute.
Engineered to strike the perfect balance between off-road capability and everyday urban versatility, this hardtail eMTB makes powerful electric performance highly accessible.
At the heart of the machine is a lightweight, tough aluminium hardtail frame integrated with a refined Shimano EP5 drive unit. Delivering 60Nm of punchy torque, this mid-drive motor handles steep fire road climbs and heavy headwinds with a smooth, natural-feeling assist that mirrors your pedaling style. Powering the motor is a highly convenient, externally mounted 504Wh battery that can be effortlessly removed for indoor charging or locked securely in place. To ensure maximum control, a trail-tuned front suspension fork absorbs fatiguing vibrations, roots, and pothole impacts, keeping your front tyre glued to the ground.
Built for durability, the eBig.Nine 300 SE comes outfitted with a robust 8-speed Shimano CUES drivetrain, featuring upgraded linkage engineering that dramatically extends chain and cassette life under the high-torque demands of an eBike motor. When it is time to slow down, powerful Shimano hydraulic disc brakes offer dependable, low-maintenance stopping control across loose dirt, mud, and rain. Rolling on fast, confidence-inspiring 29" wheels, this eMTB carries momentum beautifully wherever the trail takes you.
Highlights
Refined Shimano EP5 Mid-Drive: Provides a punchy 60Nm of torque to flatten steep terrain with a highly intuitive and progressive power delivery.
Removable 504Wh External Battery: High-capacity power cell that is easy to remove, swap, or bring indoors for fast, flexible charging.
Tough Shimano CUES 8-Speed Gearing: Built with Shimano's high-durability LinkGlide technology to withstand heavy eBike chain loads for smoother shifting.
Shimano Hydraulic Disc Brakes: Delivers consistent, powerful, and easily modulated braking performance in all weather conditions.
Fast-Rolling 29er Wheelset: Stiff, large-diameter 29" wheels designed to maintain high speed, roll over trail obstacles effortlessly, and track straight.
Dual-Purpose Geometry: Offers a confidence-inspiring off-road stance that remains comfortable and practical for daily tarmac commutes.
Merida eBig Nine 300 SE Electric Bike
Frame: Lite : Hydroformed 6066 aluminium with internal cable routing via Smart Entry ports. Tapered head tube, 148x12mm Boost thru-axle standard. Equipped with integrated mounts for mudguards and a kickstand. Max tyre size: 29" x 2.25"
Fork: SR Suntour XCM34-Boost LOR DS : Coil suspension; 100mm travel; tapered steerer; 51mm offset. Max tyre size: 29" x 2.4"
Drive Unit (Motor): Shimano EP5 Mid-Drive Motor; 60Nm torque
Battery: Shimano EN604 External; 504Wh capacity
Display / Controls: Shimano SC-EN500 integrated display and switch unit
Gears: 8-Speed (1 x 8)
Shifters: Shimano Altus (Rear)
Rear Derailleur: Shimano Essa RD-U2000-8
Chainset: Prowheel EB11 with Pro38P-S16-49 38T chainring (Crank length: 165mm for all sizes)
Cassette: Shimano CS-HG300-8; 11-45T; 8-Speed
Chain: KMC Z8.3 EPT (Anti-rust coating)
Brakes: Shimano MT200 2-piston hydraulic disc brakes with Shimano RT10 180mm rotors front and rear
Brake Levers: Shimano MT200 Hydraulic
Handlebars: Merida Expert Aluminium; 680mm wide; 15mm rise
Stem: Merida Comp CC Aluminium; 31.8mm clamp; 7° rise (Length: 90mm for all sizes)
Headset: Merida-2341 (1-1/8" to 1.5" tapered) with two 10mm spacers
Grips: Merida Comp TK
Rims: Merida Comp TK Aluminium; 20mm inner rim width
Hubs: Centerlock; Front: Shimano QC300 100x9mm (32H) / Rear: Shimano TC500-HM-B 148x12mm Boost (36H)
Spokes: Black stainless steel with black nipples
Tyres: Kenda Booster; 29" x 2.2"; Wire bead
Wheel Size: 29"
Saddle: Merida Expert TK (168mm width)
Seatpost: Merida Comp CC Aluminium; 30.9mm diameter; 0mm layback
Pedals: VP VPE-891