The Specialized S-Works Tarmac SL8 is designed for serious cyclists who prioritize speed, weight, and performance. It excels in competitive road cycling and long-distance riding. The Rad Power Bikes RadCity 5 Plus is a practical choice for urban commuters and those seeking assistance with hills or carrying cargo. Its electric motor and integrated features make it a versatile option for daily transportation.
| Attribute | Specialized S-Works Tarmac SL8 | Rad Power Bikes RadCity 5 Plus |
|---|---|---|
| Frame Material | FACT 12r Carbon | Aluminum Alloy (6061 Aluminum Alloy) |
| Weight (lbs) | Around 14.55 to 15.2 lbs (6.6 kg to 6.9 kg). Frameset: Claimed 685g (size 56cm, lightest colorway) | 65 (High-Step), 64 (Step-Thru); 57.4 (High-Step, w/o battery), 56.4 (Step-Thru, w/o battery) |
| Groupset | Shimano Dura-Ace Di2 or SRAM Red AXS. Other models may have Shimano Ultegra Di2, SRAM Force AXS or SRAM Rival AXS | 7-Speed Shimano Altus |
| Wheelset | Roval Rapide CLX II | 27.5-inch wheels |
| Tire Size | 700x26mm, compatible with tires up to 32mm | 27.5" x 2.0" |
| Brake Type | Hydraulic disc brakes | Hydraulic Disc Brakes |
| Motor Power (Watts) | Not applicable | 750W (Nominal) |
| Battery Capacity (Wh) | Not applicable | 672 Wh, 48V, 14Ah |
| Max Speed (mph) | Not applicable | 20 (Class 2 e-bike) |
| Range (miles) | Not applicable | 28-50 (estimated) |
| Integrated Lights | Not applicable | Front LED headlight and integrated rear taillight with brake light |
| Carrying Capacity (lbs) | Not applicable | 275 (total payload); 59.5 (rear rack) |
| Price | Not available | Not available |
| Overall Rating | Not available | Not available |