If you're looking for a bike that combines lightweight performance, durability, and race-ready speed, the HR4 is your perfect match. Taking everything you love about the HR3 and pushing it even further, the HR4 is for the serious racer.
What's New with the HR4?
Lighter Carbon Wheelset (45mm): We've kept the same aerodynamic profile but made the wheels even lighter, so you can accelerate quickly up climbs and out of corners.
Perfect for Criterium Racing
With the HR4, you get the durability of aluminium and the precision of race-ready components. It's light, fast, and ready to handle the toughest courses—whether flying through tight corners or powering down the straights.
Our Recommendation
We recommend pairing the HR4 with SRAM FORCE AXS e-Tap Wireless 12-Speed components for precise shifting and a wide gear range, perfect for tackling fast-paced criterium races. The combination of a durable aluminium frame and high-quality components makes the HR4 built to withstand the demands of the race while providing the smooth, responsive performance racers are looking for.
Sizing
Geometry
| 45 | 48 | 51 | 54 | 57 | |
|---|---|---|---|---|---|
| Reach | 367 | 379 | 382 | 391 | |
| Stack | 510 | 523 | 545 | 561 | |
| Top Tube (effective) | 510 | 530 | 543 | 565 | |
| Seat Tube C-T | 441 | 473 | 502.5 | 535 | |
| Seat Tube C-C | 420 | 453 | 485 | ||
| Head Angle | 71 | 72.1 | 73 | 74 | |
| Seat Angle | 74.3 | 74.4 | 73.5 | 73.5 | |
| Head Tube | 97.5 | 107.5 | 127 | 140 | |
| Chainstay | 408 | 408 | 410 | 410 | |
| Wheelbase | 974 | 977 | 980 | 983 | |
| Front Centre | 577 | 579 | 580 | 595 | |
| Standover | 705 | 743 | 760 | 790 | |
| BB Drop | 72 | 70 | 70 | 70 | |
| Fork Length (A2C) | 373.5 | 373.5 | 373.5 | 373.5 | |
| Tire Width (max) | 32mm | 32mm | 32mm | 32mm | 32mm |
| Stem Length | 90mm | 90mm | 90mm | 100mm | 110mm |
| Crank Length | 170mm | 170mm | 170mm | 172.5mm | 175mm |
| Handlebar Width | 380mm | 380mm | 380mm | 400mm | 420mm |
World-class bikes, but affordable
HOSKING bikes are exceptionally priced because we are on a mission. After a remarkable 13-year career as a professional cyclist, our founder, Chloe, committed to a purpose: making world-class bikes accessible. Our dedication to this purpose is why we are able to offer top-quality bikes at prices our competitors won't match.
We believe in breaking down barriers and empowering cyclists to ride with professional-level equipment, without breaking the bank.
When you purchase a HOSKING you join us on our mission for accessible excellence in cycling.
Assembly Instructions
You will need to complete some minor final assembly before riding.
- 10-15min - You have assembled bikes before
- 15-25min - You are mechanically handy
- 30-40min - Never assembled a bike and working with tools isn't your thing
Please note, that all bicycles whether purchased online or instore, are mechanical devices and need to be serviced regularly to ensure proper functioning. New gear and brake cables, will stretch during the initial bed-in period, and will need to be adjusted after approximately 150-250km.
How Does My Bike Arrive?
HOSKING Bikes ensure that your bike is thoughtfully built and tuned by our mechanics, prior to being packaged and shipped to you. The packaging has been designed to ensure that your bike arrives safely and securely.
We ensure that there is the least amount of assembly required to get the bike ready to ride and provide all the tools to do so. You'll only need to do some minor assembly and setup, as well as possibly adding air to the tyres before you are able to get out and ride. Follow the assembly instructions in the section above.
Bike Geometry
| 45 | 48 | 51 | 54 | 57 | |
|---|---|---|---|---|---|
| Reach | 367 | 379 | 382 | 391 | |
| Stack | 510 | 523 | 545 | 561 | |
| Top Tube (effective) | 510 | 530 | 543 | 565 | |
| Seat Tube C-T | 441 | 473 | 502.5 | 535 | |
| Seat Tube C-C | 420 | 453 | 485 | ||
| Head Angle | 71 | 72.1 | 73 | 74 | |
| Seat Angle | 74.3 | 74.4 | 73.5 | 73.5 | |
| Head Tube | 97.5 | 107.5 | 127 | 140 | |
| Chainstay | 408 | 408 | 410 | 410 | |
| Wheelbase | 974 | 977 | 980 | 983 | |
| Front Centre | 577 | 579 | 580 | 595 | |
| Standover | 705 | 743 | 760 | 790 | |
| BB Drop | 72 | 70 | 70 | 70 | |
| Fork Length (A2C) | 373.5 | 373.5 | 373.5 | 373.5 | |
| Tire Width (max) | 32mm | 32mm | 32mm | 32mm | 32mm |
| Stem Length | 90mm | 90mm | 90mm | 100mm | 110mm |
| Crank Length | 170mm | 170mm | 170mm | 172.5mm | 175mm |
| Handlebar Width | 380mm | 380mm | 380mm | 400mm | 420mm |