Kingbull Trekker: Size Chart & Specs

About the Trekker

The Kingbull Trekker is a 26-inch step-through city e-bike and the flagship commuter model in Kingbull’s premium Forge Series, pairing a 960Wh Samsung battery and Tektro 4-piston hydraulic brakes with a refined step-through frame for effortless urban riding. Its 750W Bafang torque-sensor motor, 80-mile range, and 450 lb payload capacity make it equally capable as a solo daily commuter and a loaded cargo run bike. The Trekker is UL 2849 certified and is backed by a 2-year comprehensive warranty.

Technical Specifications

Motor 750W Bafang G062 Brushless Hub (1,400W Peak, 85Nm)
Battery 48V 20Ah Samsung (960Wh)
Range Up to 80 Miles
Weight Capacity 450 lbs
Bike Weight 79 lbs

Pros

  • ✅ The 960Wh Samsung battery delivers a class-leading 80-mile range for a step-through commuter, with owner reports confirming sustained real-world range at low assist settings
  • ✅ Tektro HD-E3940 4-piston hydraulic brakes on 180mm rotors provide significantly stronger and more modulated stopping power than the 2-piston systems common at this price
  • ✅ 100mm ZOOM front suspension fork absorbs urban potholes and speed bumps effectively while locking out for efficient pedaling on smooth roads

Cons

  • ❌ At 79 lbs the Trekker is heavier than most competing step-through commuter e-bikes, and the lack of a folding mechanism makes storage in small apartments more challenging
  • ❌ The 26-inch wheel size and step-through frame geometry prioritize comfort and stability over speed; riders seeking a more performance-oriented riding position may find it too upright

Kingbull Trekker Height Sizing Chart

Frame Size Rider Height (Imperial) Rider Height (Metric)
One Size 5’3″ – 6’6″ 160 cm – 198 cm

Frequently Asked Questions

How does the Trekker’s 4-piston Tektro brake system compare to the standard 2-piston brakes found on most e-bikes at this price?

The Tektro HD-E3940 4-piston system uses four brake pistons rather than two to clamp the 180mm rotor, generating significantly more braking force with less hand effort. In independent testing of the similar Verve model, this system achieved stopping distances nearly two feet shorter than the e-bike category average. The practical result is confident, controlled braking in wet conditions, on steep descents, and when riding fully loaded—all scenarios common for a commuter e-bike.

Is the Trekker suitable for riders who are slightly shorter, such as 5’3″, or is it sized for taller people?

Kingbull rates the Trekker for riders from 5’3″ to 6’6″ (approximately 160cm to 198cm). The minimum seat height of 33.5 inches suits most riders at 5’3″ and above who have average inseam proportions. The step-through frame removes the need to swing a leg over a top tube, making dismounting and remounting at stops significantly easier for shorter riders. If you are at the very low end of the height range, comparing your inseam against the 33.5-inch minimum seat height before ordering is recommended.

Calculate Your Size Instantly

Input your exact dimensions into our interactive calculation tool below to double-check your frame measurements.

Kingbull Bike Size Calculator

Find the perfect frame size for your new Kingbull bike. Enter your height below to get a precise recommendation.

Find Your Perfect Size Now

Scroll to Top