Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 70388
| Model year | 1998 |
|---|---|
| Brand | Schwinn |
| Model | Sierra |
| Bicycle type | Mountain bike, non-suspension |
| Archive ID | 70388 |
| Original MSRP | $329.95 |
| Colors | Bright Blue, Bright Green |
| Sizes | Large, medium, small, womens small, womens xsmall, xsmall |
| Frame construction | TIG-welded |
|---|---|
| Frame material | Chromoly seat tube/hi-tensile steel |
| Fork | Schwinn |
| Fork material | Chromoly, unicrown crown |
| Rear shock | N/A |
| Component group | Mountain Mix |
|---|---|
| Shifters | Grip Shift MRX-170 |
| Front derailleur | Shimano Altus top-swing |
| Rear derailleur | Shimano AceraX |
| Crankset | Shimano Altus, 24/34/42 teeth |
| Rear cogs | 7-speed, 11 - 28 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Resin |
| Brakes | Shimano Altus brakes, Tektro levers |
|---|
| Headset | 1 1/8" steel |
|---|---|
| Handlebar | Steel 1" rise |
| Handlebar extensions | Not included |
| Stem | Steel |
| Saddle | Spring type |
| Seatpost | Suspension |
| Hubs | Front: Formula aluminum, Rear: Shimano Altus |
|---|---|
| Rims | Aluminum, 36-hole |
| Spokes | Stainless steel, 2.0mm straight gauge |
| Front tire | 26 x 1.95" multi-terrain |
| Wheel size | 26" wheels |
| Top tube | 576.6 mm |
|---|---|
| Head-tube angle | 71° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 424.2 mm |
| Wheelbase | 1051.6 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 2, 2026.