E-504 SIZE SMALL

Amplify Your Fun

The E-504 electric hardtail offers the same exceptional ride as our E-505 electric hardtail but runs on smaller 27.5in wheels with a more compact frame and smaller XS, S and M size options so that smaller riders don’t have to compromise their off-road experience – or their expectations. 

Stylishly rugged looks and top quality ‘real off road’ components truly make the E-504 the highly capable Land Rover Defender of e-bikes. Whether you want to ride with friends, stay fit and healthy, explore the countryside, or get the blood pumping pushing your limits, our E-504 electric assist mountain bike is the perfect off-road partner to do it all. With its mix of easy speed and long-range freedom together with the confidence to explore everywhere, it makes any surface from road to forest trails huge fun while taking the worry out of hills and long distances. 

Highlights
– Perfect for smaller riders with XS, S, and M compact frame sizes
– A highly capable and confident-inspiring ride
– Light and robust 6061 T-6 aluminum frame
– Powerful and reliable Bosch Performance Line CX 85Nm motor
– Large capacity Bosch PowerTube 500Wh removable battery
– Agile 27.5in (aka ‘640b’) wheels + high volume Maxxis tyres
– Fast-shifting and durable 1x11 SRAM transmission (36T chainring x 11-42T cassette)
– Powerful four-piston hydraulic disc brakes for reliable all-weather braking 

Why E-504?
The E-504 takes all that we know about exceptional mountain bike hardtail geometry and adds a powerful and reliable Bosch motor, battery and controls to give you a huge range of everyday use – from trail riding to commuting, or both in one day – together with a confident-inspiring ride feel.

Our E-504 electric mountain bike is designed by the same team as our award-winning conventional mountain bikes and benefits from all their knowledge and riding experience. The same handling genius that our designers use to win national championships is what’ll make you feel totally in control on slippery, bumpy tracks or zooming down a gravel descent in the forest. The upright position and wide bars make just as much sense for cruising back country lanes, short cutting through town or just making the most of the views this bike can take you to. 

The powerful, premium Bosch motor will have got you to the top of that hill with effortless ease and the Purion handlebar display will tell you clearly how far you’ve still got to enjoy and explore. Intelligent motor modes give the best possible range from the big 500Wh battery for hours of adventures. Fitting the battery inside the super tough, mountain bike frame keeps it sealed, safe and sleek but it’s easy to remove for charging inside. The frame mounted motor means perfect handling balance and the smoothest ride and just like the internally routed controls it’s fully protected from the weather. Legendary Bosch reliability means you’ll never miss a ride or worry about getting home either.

Features & Equipment
While the E-504 is super easy to ride whatever your biking experience it’s fully ready to back up your bravest moves too. Rolling on agile and capable 27.5in wheels that help keep the riding experience in proportion for smaller riders, we’ve dressed the wide wheel rims with high-volume 27.5x2.6in Maxxis tyres to deliver great grip and comfort off-road. RockShox suspension is the original and best and the SRAM gears are super simple to use whether you need a winch for silly uphills or warp speed down the other side. Four piston disc brakes with oversized rotors guarantee safety whatever the weather too.

Looking for the same ride feel but need a larger L or XL frame size, or a longer reach across a size M?

All our electric assist off road bikes, from the big wheeler E-505 to the E-506 SUV//insert link// come with a remote-controlled dropper seat post as standard. This lets you lower the saddle with a switch on the handlebars so you can stop or start with both your feet flat on the floor. It also makes getting on and off the bike easier wherever you are too and even helps when you’re riding by the seat of your pants on trickier trails. That’s why we guarantee if you were wondering why we fit one at first, you’ll soon be wondering how you ride a bike without one.

Geometry

GEOMETRY
SIZE	XS	S	M
A HEAD TUBE ANGLE	64	64.5	64.5
B SEAT TUBE ANGLE	74.5	74.5	74.5
C TOP TUBE HORIZONTAL	569	590	620
D BB HEIGHT ABOVE GROUND	305	305	305
E STAND OVER HEIGHT	712	728	758
F  WHEEL BASE	1146	1163	1193
G CHAIN STAY LENGTH	440	440	440
H SEAT POST DIAMETER	30.9	30.9	30.9
I HEAD TUBE LENGTH	107	115	115
J SEAT TUBE LENGTH	381	406	444
STACK	600	610	610
REACH	403	421	450