ByK E-620 Boys Bike - Black/Blue 3 Speed Internal Gearing - Black/Blue

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The ultimate urban bike for dynamic kids

Bicycles require some assembly. This may include fitting the wheels, handlebars, pedals, seatpost and seat, and front brake caliper. This should not be attempted by the customer unless familiar with modern bicycle assembly and should otherwise be carried out by a competent bicycle mechanic. This includes bicycles sent to our stores for in store pick up, however, your local Bikebug store can assemble the bicycle for a fee, please contact your local Bikebug store after placing your order.

620x3i | Age: 10 - 14 years | Height: 142.5 - 175 cms

Simplicity and functionality are the hallmarks of this rider-friendly bike. Our unique ergonomic riding position and geometry, along with premium components is unprecedented for a bike of this size.

Shimano ultra smooth 3 speed gears, along with our responsive handling to increased safety at speed, make this bike easy and fun to ride. Just 12kg.

Ability Level: Expected To Know How To Ride With The Safety Of Internal Gears And Footbrake.

Design - The 620x3i is uniquely designed for children and is not a scaled down adult bike. Every single component has been considered, tested, custom sized and tuned to suit our rider's profile.

Our unique ergonomic riding position and geometry along with our selection of premium components together offer a range of riding positions and adjustability unexpected at this size.

Performance - Shimano ultra smooth and class leading efficient internal 3 speed gears couldn't be easier to use.

Strong wheels, durable tyres, tough tubes, comfortable ergonomic saddle, custom shaped handlebars, short reach and long reach pedal position, sealed bearings, grippy pedals and so so much more really separate ByK from the regular offering.

Safety - From our responsive handling to increased safety at speed, the ByK 620 range sets new standards in safety. The innovative frame improves balance and control to help each rider operate at the safest level possible.

To make a children's bike safe, the rider needs to be able to brake efficiently and confidently. The custom-sized V-Brakes we have used are calibrated for age, ability and ergonomic fit. And they are made of non-flexing, strong and light alloy. Our light weight alloy rims ensure pedalling is easier. But more importantly alloy rims are a more efficient braking surface than cheaper, chrome-plated steel rims, and are therefore safer.

Little Details Count

True cartridge bottom bracket for straighter chain alignment.

Shimano internal gears forleast resistance, ease of change and durability.

CRM forks for extra comfort and improved handling.

Long rear stay length for best possible gear shifting

Super tough alloy wheels for reduced maintenance.

Calibrated V-Brakes for progressive braking.

Full grip pedals for added safety.

Machined surface rms for predictable braking.

Custom sized grips.

Specifications

Weight: 10.9kg

Minimum Seat Height: 71cm

Frame: Butted Alloy Frame, Low Gravity Concept Design, CRM Forks

Gears: Shimano 3 speed internal gears

Wheels: Dynamic Advantage Tall Alloy Wheels, Reinforced 36 Hole

Tyres: Low-Profile, Low-Resistance Design with Tough Tubes

Brakes: Alloy Tektro Front & Rear Calibrated V brakes + Rear SRAM Footbrake*

Brake Levers: Alloy Tektro Custom Sized Levers

Saddle: Adjustable, Comfort Midi+ Deluxe

Handlebars: Custom Width Low Rise V-Bars

Safety Reflectors: Included

Bells: Included

Kickstand: Included

Size Chart

Bike Model	Wheel Size	Compares To	Age Group	Rider Height	Min Seat Height
E-200	200mm	12" Bike	2-4 years	Small - MidSize	33cm
E-250	250mm	12" Bike	3-5 years	85-102cm	40cm
E-350	350mm	16" Bike	4-6 years	95-117cm	46cm
E-450	450mm	20" Bike	5-8 years	110-132cm	59cm
E-540	540mm	24" Bike	7-11 years	130-160cm	66cm
E-620	620mm	26" Bike	10-14 years	142.5-175cm	71cm

How To Determine Your Size

ByK Bikes are not categorised by the old imperial sizings of the past (like 12", 16", 20", or 24"). They use the metric system to describe their wheel sizes as 200mm, 250mm, 350mm, 450mm, 540mm and 620mm. Please use this chart to determine the bike size best suited to your young rider.