Diamondback Sync 4.0 650b Mens Mountain Bike - 2018

Can be purchased using Cycle to work

The Diamondback Sync 4.0 650b Mens Mountain Bike is a capable mountain bike for beginners wanting to experience the thrill of trail riding. A lightweight aluminium frame with 100mm trail smoothing suspension for unbeatable value.

Key to the trail shredding performance of the Diamondback Sync 4.0 is a lightweight and nimble aluminium frame. Diamondback shave excess weight off the frame through a process called butting. This improves your acceleration and climbing for a more enjoyable ride.

Upfront is 100mm trail smoothing suspension for taking the sting out of rough terrain riding. The fork also features lockout so you can fix the suspension in place for easier climbing.

The Shimano Alivio 3x9 speed drivetrain offers reliable shifting over a wide range of gears so you can tackle all the climbs on your loop. It’s great to see powerful hydraulic disc brakes on a hardtail mountain bike at this price. These brakes work consistently regardless of the weather conditions and are effective when commuting too.

Diamondback Frame SizeHeight (inches)Height (cm)
14" 5'0" to 5'4" 152cm to 163cm
16" 5'5" to 5'7" 165cm to 170cm
18" 5'8" to 5'10" 173cm to 178cm
20" 5'11" to 6'1" 180cm to 185cm
22" 6'2" to 6'4" 188cm to 193cm

Specification Overview

More Information
Brand Diamondback
Type Hardtail Mountain Bikes
Frame Material Alloy
Suspension Front Suspension
Wheel Size 27.5”
Number of Gears 27
Brake Type Disc
Pedals Included Yes
Gender Mens
More Information
Eligible for cycle to work Eligible for cycle to work
Bike Frame Size N/A
Primary Colour Blue
Brand Diamondback
Type Hardtail Mountain Bikes
Frame Material Alloy
Suspension Front Suspension
Wheel Size 27.5”
Number of Gears 27
Brake Type Disc
Pedals Included Yes
Gender Mens
Frame Alloy Butted Hydrofomed Tubing, Integrated Headset, Forged Dropouts
Forks Suntour XCT-HLO Suspension
Fork Lock Out Yes
Rear Shock No
Gear Shifters Shimano Alivio 27 Speed Rapid Fire
Rear Mech Shimano Deore Shadow
Front Mech Shimano Altus
Chainset Suntour XCM 44/32/22T
Cassette / Freewheel Sunrace 12-34T Cassette
Chain KMC
Bottom Bracket Semi Sealed Cartridge 122mm
Pedals Resin Composite Platform with moulded pins
Front Brake Tektro Hydraulic Disc Brake
Rear Brake Tektro Hydraulic Disc Brake
Front Hub Aluminium QR, 36H
Quick Release Front Wheel Yes
Rear Hub Aluminium Cassette, QR 36H
Quick Release Rear Wheel Yes
Rims 27.5" Aluminium Double Wall, Custom Decals
Tyre Size 27.5 x 2.1"
Tyres Schwalbe Rapid Rob
Handlebars Alloy Riser , 720mm Wide, 12mm Rise, 6-Deg Bend
Stem Diamondback Forged Aluminium
Grips DB Trail Grip
Headset 1-1/8"Semi-Integrated Threadless
Saddle Diamondback MTB
Seatpost Aluminium, 31.6x350mm
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You're reviewing:Diamondback Sync 4.0 650b Mens Mountain Bike - 2018
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Shipping Group Bikes
Origin DC

Free Build and Delivery

Free delivery is available on all bikes sold by us. To find out exactly when you’ll be able to get your new bike, take a look at the available delivery options in the checkout.

All of the bikes we sell online are built and inspected by our qualified mechanics – just like when you buy a bike from one of our stores. All you’ll need to do when you receive the bike is straighten the handlebars and attach one of the pedals. This service is free, and included every time you buy a bike.

To find out more about bike delivery, as well as our easy returns service, head over to our delivery and returns page.