Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 31973
| Model year | 2004 |
|---|---|
| Brand | Koga Miyata |
| Model | Gran Racer |
| Bicycle type | Road race & triathlon |
| Archive ID | 31973 |
| Colors | Blue Matte |
| Sizes | 46cm, 52cm, 54cm, 56cm, 58cm, 60cm, 63cm, 66cm |
| Weight | 20.9 lb |
| Frame construction | TIG-welded |
|---|---|
| Frame material | 7005 aluminum |
| Fork | Carbon Aero |
| Fork material | Carbon fiber, aero crown |
| Rear shock | N/A |
| Component group | Road Mix |
|---|---|
| Shifters | Shimano Tiagra STI Dual Control |
| Front derailleur | Shimano Tiagra, bottom-pull/clamp-on 31.8mm |
| Rear derailleur | Shimano Tiagra SS |
| Crankset | Shimano Tiagra, 30/42/52 teeth |
| Bottom bracket | Shimano BB-UN53, 113mm spindle |
| BB shell width | 68mm English |
| Rear cogs | 9-speed, 12 - 25 teeth |
| Chain | Shimano CN-HG73, 1/2 x 3/32" |
| Pedals | Koga VP-R70 |
| Brakes | Shimano Tiagra Dual Pivot brakes, Shimano Tiagra STI Dual Control levers |
|---|
| Headset | 1 1/8" integrated Cane Creek ISDD |
|---|---|
| Handlebar | ITM Super Italian Pro 330 |
| Handlebar extensions | N/A |
| Stem | ITM Forged Lite Luxe |
| Saddle | Selle San Marco Base |
| Seatpost | Aluminum micro-adjust, 27.2mm diameter |
| Hubs | Shimano Tiagra |
|---|---|
| Rims | Mach1 RJ350, 36-hole |
| Spokes | Sapim stainless steel, straight gauge |
| Spoke nipples | Brass nipples |
| Front tire | 700 x 23c Continental Grand Prix |
| Wheel size | 700c wheels |
| Top tube | 560 mm |
|---|---|
| Head-tube angle | 72.5° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 410 mm |
| Wheelbase | 1000 mm |
| Fork offset / rake | 45 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 1, 2026.