Size Guide











Description
Specifications
Geometry
Size Guide
Assembly
The Heist X5 features an SR Suntour NVX fork, Shimano Deore 1x10 groupset, Shimano hydraulic disc brakes, Entity alloy wheels with 45mm WTB Riddler tyres and aluminium contact points, offering fantastic value.
FRAME SPEC
Aluminum has long been the ideal material for bikes and aeroplanes with its incomparable strength-to-weight ratios. The frame features internal cable routing and multiple mounting points for bottle cages, racks and mudguards.
GEOMETRY
Designed to be confident with 71° head and 74° seat tube angles, longer 440mm stays for comfort, 415mm of reach and 289mm bottom bracket height for ground clearance. (In Medium)
SUNTOUR FORK
The Suntour NVX is a lightweight trekking-specific suspension fork. It features 63mm of travel, lightweight magnesium lowers and a quick-release interface.
DEORE 1X10
The 1x10 Shimano Deore drivetrain is paired with an 11-42T cassette and a 42T chainring, giving you the perfect gear ratios to get around with ease.
SHIMANO HYDRO
With braking power, lever reach tuned for every rider, and low-maintenance design, the Shimano BL-MT201 is the ideal brake for everyone.
ENTITY ALLOY
Featuring Entity aluminium contact points like raised flat bars for stability and control and a lightweight alloy stem/seatpost combo.
We reserve the right to modify product specifications and details without prior notification.
Length measurements are provided in millimeters and degrees, unless specified otherwise.
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
Size | Age | Range (cm) | Range (ft & in) |
---|---|---|---|
12" (Balance) | 2 - 4 | 80 - 100 | 2'6" - 3'1" |
16" | 4 - 7 | 100 - 120 | 3'4" - 4'0" |
20" | 7 - 9 | 120 - 135 | 4'0" - 4'5" |
24" | 9 - 11 | 135 - 145 | 4'5" - 4'9" |
If you are outside of the size range or unsure of the right fit for you, give us a call or come in and visit your local store to talk about your best options.
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Polygon Heist X5 - Hybrid Bike. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Description
The Heist X5 features an SR Suntour NVX fork, Shimano Deore 1x10 groupset, Shimano hydraulic disc brakes, Entity alloy wheels with 45mm WTB Riddler tyres and aluminium contact points, offering fantastic value.
FRAME SPEC
Aluminum has long been the ideal material for bikes and aeroplanes with its incomparable strength-to-weight ratios. The frame features internal cable routing and multiple mounting points for bottle cages, racks and mudguards.
GEOMETRY
Designed to be confident with 71° head and 74° seat tube angles, longer 440mm stays for comfort, 415mm of reach and 289mm bottom bracket height for ground clearance. (In Medium)
SUNTOUR FORK
The Suntour NVX is a lightweight trekking-specific suspension fork. It features 63mm of travel, lightweight magnesium lowers and a quick-release interface.
DEORE 1X10
The 1x10 Shimano Deore drivetrain is paired with an 11-42T cassette and a 42T chainring, giving you the perfect gear ratios to get around with ease.
SHIMANO HYDRO
With braking power, lever reach tuned for every rider, and low-maintenance design, the Shimano BL-MT201 is the ideal brake for everyone.
ENTITY ALLOY
Featuring Entity aluminium contact points like raised flat bars for stability and control and a lightweight alloy stem/seatpost combo.
Specifications
We reserve the right to modify product specifications and details without prior notification.
Geometry
Length measurements are provided in millimeters and degrees, unless specified otherwise.
Size Guide
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
Assembly
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Polygon Heist X5 - Hybrid Bike. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Our Polygon Heist X5 - Hybrid Bike includes the industry-leading Reid Warranty: lifetime on frame/rigid forks and 2 years on non-consumable parts. Shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.
Home Delivery
Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.

Buy One, Plant One
Since January 2020 we have worked with not-for-profit reforestation partners to donate enough money to pay a local person a fair wage to grow, plant and guard to maturity 1 native tree for every bike we sell.
We've now planted more than 400,000 trees and counting!
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