| Monday | 9.00am - 5.30pm |
| Tuesday | 9.00am - 5.30pm |
| Wednesday | 9.00am - 5.30pm |
| Thursday | 9.00am - 5.30pm |
| Friday | 9.00am - 5.30pm |
| Saturday | 9.00am - 5.30pm |
| Sunday | 10.00am - 4.00pm |
| Bank Holidays | 10.00am - 5.00pm |

2026 Cube Cube Acid 240 Hybrid Rookie Slx 400X Kids Bike In Reedgreen And Matrix
Frame description
From its Advanced Internal Cable Routing to its Boost rear axle and UDH gear hanger, the Acid 240 Hybrid Rookie's frame is bursting with exactly the same kind of attention to detail as our adult mountain bikes. The lightweight Bosch SX drive and fixed 400Wh battery sit snugly in the frame, providing up to 55Nm of pedal assistance to a maximum speed of 20km/h, plus full compatibility with the optional 250Wh PowerMore range extender. It's even dropper seatpost ready and SIC 2.0 compatible, for easy fitting of a luggage carrier. And, with the included kickstand, your youngster will never struggle for somewhere to park it.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 and eBikes will incur a £25 delivery fee.
Free Delivery On Orders Over £199.99 - When you spend more than £199.99 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
Find Out More About Returns >
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battery
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Bosch CompactTube 400
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brakes
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Magura MT Thirty, Hydr. Disc Brake (160/180)
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cassette
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Shimano Cues CS-LG400, 11-50T
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chain
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KMC eGlide
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charger
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Bosch 2A
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crankset
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ACID MTB Hybrid Pro, 38T
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fork
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Suntour Raidon34 2CR Air, Tapered, 15x110, 80mm
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frame
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Aluminum Superlite, Agile Ride Geometry, Boost 148, UDH™, Integrated Battery, Advanced Internal Cable Routing, Kickstand/Fender/Carrier Mounting Points
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grips
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Natural Fit Kids 19.0
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handlebars
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CUBE KIDS 590mm, Ø 19mm
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material
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Aluminum
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motor
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Bosch Drive Unit Performance SX 55Nm (BDU31)
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pedals
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CUBE PP MTB medium
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rear derailleur
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Shimano Cues RD-U6000-GS
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shifters
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Shimano Cues SL-U6000, Rapidfire-Plus
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tyres
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Schwalbe Hans Dampf, Addix Performance, Kevlar, 2.35
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wheelset
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ACID SLX 20, 32/32 Spokes, 15x110mm/12x148mm, Tubeless Ready
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Please note the following size guides are a general overview and represent a rough guide to Cube sizing.
Each bike may deviate from these figures, please refer to the specific geometry details or contact us for more precise sizing.
Cube Mountain Bike Size Guide (including E-MTB)
| Size | 13.5 - 15" (XS) | 16 - 17" (S) | 18 - 19" (M) | 20 - 21" (L) | 22 - 23" | 23 - 24" |
| Height (cm) | 149 - 160 | 159 - 167 | 166 - 177 | 176 - 185 | 184 - 191 | 191+ |
Cube Road Bike Size Guide
| Size | 46 - 48cm (XXS) | 49 - 51cm (XS) | 52 - 53cm | 54 - 56cm | 57 - 59cm | 60 - 61cm | 62cm (XXL) |
| Height (cm) | 155 - 162 | 161 - 170 | 169 - 176 | 175 - 185 | 184 - 194 | 194 - 200 | 201+ |
Cube Gravel Bike Size Guide
| Size | 50cm (XS) | 53cm (S) | 56cm (M) | 58cm (L) | 61cm (XL) |
| Height (cm) | 165 - 172 | 172 - 177 | 177 - 183 | 183 - 190 | 190+ |
Cube Hybrid Bike Size Guide (including E-Hybrid)
| Size | 46cm (XS) | 50cm (S) | 54cm (M) | 58cm (L) | 62cm (XL) |
| Height (cm) | 154 - 167 | 166 - 177 | 176 - 186 | 185 - 191 | 188+ |



