ProFlex 657 1997 Technical specs and features
| Brand | ProFlex |
| Model | 657 |
| First production | 1997 |
| Bike category | Mountain Bike |
| Bike sub-category | Mountain With Dual Suspension |
| Bike Pricing | Check price Here ==> |
| Parts And Accessories | ProFlex 657 Parts |
| Available Sizes | - 14 (inches) / 35.56 (cm) - 14 (inches) - 16 (inches) / 40.64 (cm) - 16 (inches) - 18 (inches) / 45.72 (cm) - 18 (inches) - 20 (inches) / 50.8 (cm) - 20 (inches) |
Wheels And Breaking System
| Bike front tire | 26 X 2.10 (inches) Panaracer Duster II |
| Bike rear tire | Not Available |
| Bike wheel size | 26 (inches) Wheels |
| Brakeset type | Chang Star 274A Levers Chang Star 879AG Brakes |
| Hubs for disc brakes | Rear: Shimano STX-RC Front: Shimano STX |
| Rims manufacturer | 32-hole Mavic 238 |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 1.8 (millimeters) Straight Gauge Chung Nan Stainless Steel |
Frame and Body Specifications
| Frame materials | Butted 7000 Aluminum |
| Frame type | TIG-welded |
| Handlebar construction | Aluminum |
| Handlebar extender | Girvin Team Issue |
| Handlebar stem details | Girvin Forged |
| Headset size | 1 1/8 (inches) Threadless Dia-Compe Kontak Aheadset ST-2 |
Gearing Specs
| Bicycle chain | 1/2 X 3/32 (inches) Sachs SC-40 |
| Bottom bracket shell width | 68 (millimeters) English |
| Bottom bracket type | 110 (millimeters) Spindle Shimano BB-LP26 |
| Crankset parts and sizes | 22/32/42 Teeth Shimano STX-RC |
| Gear shift levers | Shimano STX-RC RapidFire SL |
| Rear gear set | 11 - 28 Teeth 8-speed |
ProFlex 657 Fork System Data
| Derailleur (Front) | Bottom-pull and clamp-on 31.8 (millimeters) Shimano STX-RC Top-swing |
| Derailleur (Rear) | Shimano Deore LX SGS |
| Fork material | Girvin Linkage Crown Aluminum |
| Fork type | Girvin AL With ODS Coil Over Oil |
Other Specs of ProFlex 657
| Component group sets | Shimano Deore LX and STX-RC |
| Available colors | - Matte titanium |
| Weight | Not Available |
| Pedals details | Wellgo LU-946S |
| Rear shock absorber | 3.5 (inches) Travel Girvin GDT Coil Over Oil |
| Saddle seat | Selle San Marco Tecno Dynamica |
| Seat post extension | 27.2 (millimeters) Diameter Polygon PM-312 |
ProFlex 657 picture
657 bike comparison
ProFlex 657 Norco A-Line
ProFlex 657 Giant Reign X1
ProFlex 657 Slingshot MT-2
ProFlex 657 Cannondale Team Replica 4-Cross
ProFlex 657 bike review
ProFlex produced the 657 bike in 1997 and can be classified as a Mountain bike bicycle, this exact model costs in american market arround $1,295.00.
657 bike is available in many sizes such as 14 (inches), 16 (inches), 18 (inches) and 20 (inches).
ProFlex Mountain bike 657 can be found in a few colors, among these colors Matte titanium .
This bike is equiped with 26 x 2.10" Panaracer Duster II tires and Chung Nan stainless steel spoke wheel while the rims are manufactured by Mavic 238, 32-hole. ProFlex equiped this exact model with Chang Star 879AG brakes, Chang Star 274A levers braking system and Front: Shimano STX, Rear: Shimano STX-RC hubs.
To guarantee the comfiest ride ProFlex used 7000 aluminum, butted material for the frame. Aluminum high strength material is used on the handlebar of this 657 to ensure the perfect handling while the stems are made of Girvin forged.
For the smoothest biking experience Shimano STX-RC, 22/32/42 teeth is used on this bicycle linked to Sachs SC-40 chain that is easily replaceable as stated by ProFlex, the whole system is connected to a high reliability Shimano STX-RC RapidFire SL gear shift levers.