Bicycle Archive ยท Specification reportBicycle Archive ยท Specification reportVelopedia Archive ID 14921
| Model year | 2008 |
|---|---|
| Brand | Opus |
| Model | Sonar |
| Bicycle type | Mountain bike, front suspension |
| Archive ID | 14921 |
| Colors | Satin Black |
| Sizes | Xsmall, small, medium, large, xlarge |
| Weight | 31.5 lb |
| Frame construction | TIG-welded |
|---|---|
| Frame material | 6000 aluminum |
| Fork | RST 191 T7, 75mm travel |
| Fork material | Single |
| Rear shock | N/A |
| Component group | Mountain Mix |
|---|---|
| Shifters | Shimano ST-EF60 |
| Front derailleur | Shimano C050 |
| Rear derailleur | Shimano Tourney TX-51 |
| Crankset | Suntour XCR-170 |
| Bottom bracket | CH-52 cartridge |
| Cassette | Shimano HG30 |
| Rear cogs | 7-speed, 11 - 30 teeth |
| Chain | Kmc |
| Pedals | Wellgo alloy body/cage |
| Brakes | ProMax Alloy V-Brake brakes, Promax levers |
|---|
| Headset | 1 1/8" VP |
|---|---|
| Handlebar | Ora AL-027 |
| Handlebar extensions | Not included |
| Stem | Ora 2D |
| Saddle | Ora, Black |
| Seatpost | Ora SP242, 27.2mm diameter |
| Hubs | Front: Formula, Rear: Formula, nutted |
|---|---|
| Rims | Alex DM-18 |
| Front tire | 26 x 2.00" CST |
| Wheel size | 26" wheels |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 29, 2026.