The Shift 29 is a great value electric motor assisted mountain bike by Calibre. Powered by an electric Promovec rear hub motor with a 280W battery, the Shift will cruise your local forest trails, boost along singletrack, and happily slingshot you up exhausting ascents.

Based on Calibre’s popular Rake 29 hardtail, the foundations of the Shift 29 are rock-solid. Years of development have gone into its versatile and confidence inspiring geometry – it’s an ideal choice for less experienced mountain bikers with a modest budget that want a very capable and playful bike to progress on. Powered by a Promovec rear hub motor and a 280W battery, the Shift 29 gives a big helping hand on gruelling climbs.  

The Shift 29 is built with a whole heap of components from the World’s best bike brands. Rockshox are masters of bike suspension and the Shift’s coil sprung Judy suspension fork does a grand job of smoothing out the trail. A trusty Shimano drivetrain transfers every drop of pedal power and motorised assistance to the 29 inch wheels, which are equipped with a pair of chunky WTB Trail Boss tyres. Calibre armed the Shift 29 with a pair of Clarks M2 hydraulic disc brakes to stop it in a hurry. 

The Promovec battery is stylishly integrated within the downtube where it is protected from the trail.  

About Calibre  

Calibre Bikes have a simple ethos: to build high-quality road and mountain bikes, that are affordable and fun to ride. Thoughtful and innovative design, with great attention paid to geometry and spec, makes Calibre an award-winning brand that leads the pack. 

• Frame: Alu 6061 
• Fork: Rockshox FS Judy TK 27 Q CL 100mm 
• Handlebar: Calibre Trail, Alloy 780mm wide, 20mm upsweep, 6°backsweep, 31.8mm clamp 
• Stem: Calibre Trail, 31.8mm clamp, 45mm extension, 6 degree rise 
• Grips: Calibre Trail, soft compound, integrated bar end 
• Headset: Semi-integrated, ZS44 
• Saddle: Calibre Trail, steel rails 
• Seatpost: Calibre Trail 30.9 x 350mm 
• Seatclamp: 34.9mm alloy QR 
• Chainset: 32Tchainring with170mm cranks 
• Pedals: Flat pedals 
• Bottom Bracket: 68-73mm BB 
• Drivetrain: Shimano Alivio 9 speed 
• Cassette: SunRace CSM980, 9 speed, 11- 40T 
• Chain: KMC X9 
• Shifter Right: Shimano Altus 9 Speed 
• Rear Derailleur: Shimano Alivio 9 Speed 
• Tyres: WTB Trail Boss 2.25 
• Rims: Calibre 29”, 25mm wide, 36h, alu double wall 
• Front Hub: Kun Teng, KT-K68FQR, Alu, black, 36h, 6 bolt disc, 100mm QR 
• Rear Hub Motor: Promovec 250W/ 36V hub motor 135mm, 24mm Nut, 36h, 50971-BL 
• Brakes: Clarks M2 Hydraulic disc with Clarks Wavey rotors (front: 180mm, rear: 160mm) 
• Battery: Promovec 50762 – BL – DT1 – 36V – 7.8Ah – 280Wh – 50km 
• Controller: Promovec50122Battery controller - 36V FOR DT1 
• Display: Promovec50951 – Handlebar LCD display 
• Speed Sensor: 50960-750 Sensor, BB-speed compact, 5 poletplug 
• Battery Charger: Battery charger 36V for DT1 

Please Note: Due to ongoing issues in the supply chain, this bike is subject to specification changes without notice. Any changes made will be using equivalent or higher quality parts. 

**Some minor assembly is required. Consult our assembly guide for assistance. 

Unfortunately, we are not able to process faulty or warranty bike returns through our warehouse. If your bike develops a fault, please take it to your nearest GO Outdoors store where we have a full workshop and trained mechanics who will be able to assist you. 

Please note, this excludes Hathersage and Southport stores.