Bicycle Archive · Specification reportBicycle Archive · Specification report2025 Kona Unit X · 2020 Kona Unit X
| Specification | 2025 Kona Unit X | 2020 Kona Unit X |
|---|---|---|
| Overview | ||
| Model year | 2025 | 2020 |
| Brand | Kona | Kona |
| Model | Unit X | Unit X |
| Bicycle type | Mountain | Mountain |
| Archive ID | 900001150 | 900002368 |
| Original MSRP | $1,799.00 | — |
| Colors | Gloss Metallic Gold w/ Black & Concrete Decals | Gloss Champagne w/ Black & Dark Silver Decals |
| Sizes | SM; MD; LG; XL | S; M; L; XL |
| Frameset | ||
| Frame construction | Reynolds 520 Butted Cromoly | Reynolds 520 Butted Cromoly |
| Frame material | — | Steel |
| Fork | Kona Plus Fork 110mm spacing | Kona Plus Fork 110mm spacing |
| Rear shock | n/a | n/a |
| Drivetrain | ||
| Shifters | Shimano Deore 12spd | SRAM SX-Eagle |
| Front derailleur | n/a | n/a |
| Rear derailleur | Shimano Deore | SRAM SX-Eagle |
| Crankset | Shimano Deore 12spd; Chainring: 32t | SRAM SX-Eagle; Chainring: 32t X-Sync Eagle |
| Bottom bracket | Shimano 73mm | SRAM Power Spline 73mm |
| Cassette | Shimano Deore 10-51t 12spd | SRAM SX-Eagle 11-50t 12spd |
| Chain | Shimano Deore 12spd | SRAM SX-Eagle |
| Pedals | n/a | Kona JS2 |
| Brakes | ||
| Brakes | Brake Calipers: Shimano MT410 Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT410 Hydraulic | Brake Calipers: SRAM Level T; Front Brake Rotor: SRAM Centerline 180mm; Rear Brake Rotor: SRAM Centerline 160mm; Brake Levers: SRAM Level T |
| Cockpit & contact points | ||
| Headset | TH ZST no.10 | TH ZST no.10 |
| Handlebar | Kona XC/BC Riser | Kona XC/BC Riser |
| Stem | Kona XC/BC | Kona XC/BC |
| Saddle | WTB Volt | WTB Volt Sport (Sport 250 size S) |
| Seatpost | Kona Thumb w/Offset 31.6mm | Kona Thumb w/Offset 31.6mm |
| Wheels & tires | ||
| Hubs | (F) Formula 110x15mm (centerlock) / (R) Shimano 148x12mm (centerlock) | (F) Formula 110x15mm / (R) Formula 148x12mm |
| Rims | WTB ST I30 2.0 TCS | WTB ST I30 2.0 TCS |
| Spokes | Stainless Black 14g | Stainless Black 14g |
| Front tire | Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6" | WTB Ranger TCS 29x2.6" |
| Rear tire | Maxxis Rekon TR 29x2.6" or WTB Ranger TCS 29x2.6" | WTB Ranger TCS 29x2.6" |
| Wheel size | 29" | 29" |
One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.
| Measurement | 2025 Kona Unit X | 2020 Kona Unit X |
|---|---|---|
| Selected size / position | M | M |
| Reach | 450 mm | 450 mm |
| Stack | 597 mm | 597 mm |
| Head-tube angle | 68° | 68° |
| Seat-tube angle | 75° | 75° |
| Seat tube | 420 mm | 420 mm |
| Head tube | 120 mm | 120 mm |
| Chainstay / rear center | 430 mm | 430 mm |
| Wheelbase | 1144 mm | 1144 mm |
| Bottom-bracket drop | 65 mm | 65 mm |
| Bottom-bracket height | 310 mm | 310 mm |
| Standover height | 731 mm | 731 mm |
| Fork offset / rake | 50 mm | 50 mm |
| Front center | 722 mm | 722 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 5, 2026.