Shimano Tiagra Groupset Road Bike – Polygon Strattos S4 Road Bicycle
Shimano Tiagra Groupset Road Bike – The Polygon Strattos series is known for offering road bikes designed for performance and value. These bikes are often aimed at riders who want a solid road cycling experience without breaking the bank. They typically feature lightweight frames, road-focused geometry, and components that strike a balance between affordability and functionality.
Shimano Tiagra is a groupset within Shimano’s range of road bike components. It’s positioned as an entry-level to mid-range option, providing reliable shifting and braking performance. Tiagra components often feature technology and design cues from higher-tier Shimano groupsets like 105, Ultegra, and Dura-Ace.
Components
| FRAME | ALX Alloy, Internally Routed Cables, 135mm QR Axle |
| FORK | ACX Carbon Blade, 100mm QR Axle, Straight Steerer |
| HANDLEBAR | Entity Sport, Alloy |
| STEM | Entity OE, Alloy, 31.8mm Bar Bore |
| HEADSET | Zero Stack (ZS) Sealed Bearing, IS 42/28.6 | IS 52/40 |
| SADDLE | Entity Aion |
| SEATPOST | Entity Sport, Alloy, 27.2x350mm, 15mm Offset |
| CRANKSET | Shimano Tiagra FC-4700, 50x34T |
| BOTTOM BRACKET | Shimano BSA Threaded, 68mm |
| CHAIN | KMC Z-8.3 |
| CASSETTE SPROCKET |
Shimano CS-HG500, 12-28T
|
| FRONT DERAILLEUR | Shimano Tiagra FD-4700-F |
| REAR DERAILLEUR | Shimano Tiagra RD-4700-SS |
| SHIFTING LEVER | Shimano Tiagra ST-R4700, 2×10-Speed Dual Control Lever |
| BRAKE LEVER | Integrated with shifter |
| BRAKE F/R | Shimano Tiagra BR-4700 |
| TYRE | 700x28C |
| RIM | Entity XL3, 19mm Internal Width, Tubeless Ready ** |
| HUB FRONT | Alloy QRx100mm 32H |
| HUB REAR | Alloy QRx135mm 32H |
| VALVE TYPE | French Valve (Presta) |
| PEDALS | Alloy Flat |
| WEIGHT | 9.4 KG |
Note: Occasionally, without notice, manufacturers change product design and/or specifications.
Geometry
| S | M | L | XL | XXL | |
| Rider Height | 162-170 cm | 168-176 cm | 174-181 cm | 180-187 cm | 185-195 cm |
| (A) Seat Tube Length | 460 | 490 | 520 | 550 | 580 |
| (B) Seat Tube Angle | 74.5 | 74 | 73.5 | 73.5 | 73.5 |
| (C) Effective Seat Tube Angle | 74.5 | 74 | 73.5 | 73.5 | 73.5 |
| (D) Head Tube Length | 120 | 140 | 160 | 180 | 200 |
| (E) Head Tube Angle | 70.5 | 71 | 72 | 72 | 72 |
| (F) Effective Top Tube | 525 | 540 | 555.7 | 566.7 | 586 |
| (G) BB Height | 268 | 268 | 268 | 268 | 268 |
| (H) BB Offset | 75 Drop | 75 Drop | 75 Drop | 75 Drop | 75 DROP |
| (I) Chainstay Length | 415 | 415 | 415 | 415 | 415 |
| (J) Wheelbase | 994.3 | 1001.1 | 1003.1 | 1014.6 | 1034.4 |
| (K) Frame Reach | 381 | 385 | 389 | 394.3 | 408 |
| (L) Frame Stack | 520 | 540.5 | 563.1 | 582.1 | 601.1 |
| (M) Standover Height | 708 | 736 | 764 | 791 | 817 |
| Handlebar width | 400 | 400 | 400 | 420 | 420 |
| Stem length | 80 | 80 | 100 | 100 | 110 |
* All lengths in mm
** In between sizes? Measure your wingspan. If your wingspan is greater than your height, go for the frame size up. If your height is greater than your wingspan, go for a frame size down.
How Dose My Bike Arrive
Here at mobilitychairsforsale, we take great care in how you receive your bike from us. Even with decades of experience, we continue to refine this process to ensure that your bike is thoughtfully built and tuned by our professional mechanics, prior to being repackaged and shipped to you. Even the packaging has been designed in-house, 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 (pump included) before you are able to get out and ride. Follow the assembly instructions in the manual and in the section below.
Assembly Instructions
You will need to complete some minor final assembly before riding, and all the tools required to assemble the bike have been included.
- 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 95-175mi.
Consumer Guarantee
At mobilitychairsforsale we want to make sure our customers are supported to ride more and stress less. We’re a company founded by bike riders and our broad range of staff means that there is a good chance that someone here has very well been in your shoes before, with something not going according to plan. This means we can usually find a quick fix or support you to get a complicated problem solved. Just reach out to us with some details about your issue and we’ll do what we can to get it resolved.
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