Electra STREETROD 21 1999 VS Jamis COMMUTER 4 2010 specs comparison
Electra Streetrod 21
General InfosModel | Streetrod 21 |
Manufacturer | Electra |
Year of production | 1999 |
Current price | Check price Here ==> |
Color choice | -Burgandy and Red |
Sizes | - 18.5 (inches)- 20.5 (inches) |
Sizes | - 18.5 (inches)- 20.5 (inches) |
Wheels And Breaking System
Bike front tire | 26 X 1.90 (inches) EBC Street-Racer XT |
Bike rear tire | Not Available |
Bike wheel size | 26 (inches) Wheels |
Brakeset type | Tektro 382A LeversTektro 382 Linear-pull Brakes |
Hubs for disc brakes | NuttedAluminum |
Rims manufacturer | 36-holeAluminum |
Spoke nipples type | Brass Nipples |
Spoke wheel | 2.0 (millimeters) Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | Hi-tensile Steel |
Frame type | TIG-welded |
Handlebar construction | EBC Touring |
Handlebar extender | Optional |
Handlebar stem details | Kalloy Aluminum |
Headset size | 1 (inches) Threadless YST |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches) |
Bottom bracket shell width | 68 (millimeters) English |
Bottom bracket type | Cartridge |
Crankset parts and sizes | 24/34/42 TeethShimano Tourney |
Gear shift levers | Grip Shift MRX-210 |
Rear gear set | 7-speed |
Electra Streetrod 21 Fork System Data
Derailleur (Front) | Top-pullShimano Tourney |
Derailleur (Rear) | Shimano Tourney |
Fork material | Oversize Unicrown CrownHi-tensile Steel |
Fork type | Electra |
Other Specs of Electra Streetrod 21
Component group sets | Shimano Tourney |
Pedals details | Wellgo Resin With Alloy Cage |
Rear shock absorber | Not Available |
Saddle seat | EBC Touring |
Seat post extension | 26.8 (millimeters) DiameterKalloy Aluminum |

Jamis Commuter 4
General InfosModel | Commuter 4 |
Manufacturer | Jamis |
Year of production | 2010 |
Current price | Check price Here ==> |
Color choice | - Pearl White-Benzegreen and Stainless |
Sizes | - 15 (inches)- 17 (inches)- 19 (inches)- 21 (inches)- 23 (inches)- womens 14 (inches)- womens 18 (inches) |
Wheels And Breaking System
Bike front tire | 700 X 32c Vittoria Adventure Touring |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Tektro Tenera LeversShimano BR-M416 Mechanical Disc Brakes |
Hubs for disc brakes | Rear: Shimano Alfine Inter-8 Centerlock DiscFront: Shimano Alfine Dynamo Centerlock Disc |
Rims manufacturer | 36-holeAlex DC25 Disc Rims |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. Stainless Steel |
Frame and Body Specs
Frame materials | 6061 Triple Gauge Aluminum |
Frame type | TIG-welded |
Handlebar construction | Jamis ARC |
Handlebar extender | Optional |
Handlebar stem details | NVO TM4 Adjustable |
Headset size | 1 1/8 (inches) Threadless VP Slimstack |
Gearing Specifications
Bicycle chain | KMC Z9000 |
Bottom bracket shell width | 68 (millimeters) |
Bottom bracket type | 110.5 (millimeters) SpindleSealed Cartridge |
Crankset parts and sizes | 48/34t TeethFSA Vero Compact |
Gear shift levers | Shimano SL-S500 |
Rear gear set | 18 Teeth8-speed Internal |
Jamis Commuter 4 Fork System Data
Derailleur (Front) | Bottom-pull and clamp-onShimano R440 |
Derailleur (Rear) | Shimano CT-S500 Tensioner |
Fork material | Unicrown With Tappered Legs CrownAluminum |
Fork type | Jamis City and Cross |
Other Specs of Jamis Commuter 4
Component group sets | Co (millimeters)uter Mix |
Pedals details | City and Cross Style Alloy |
Rear shock absorber | Not Available |
Saddle seat | Jamis Metro Sport |
Seat post extension | 27.2 (millimeters) DiameterJamis Alloy Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, Electra provided us with the latest version of its Streetrod 21 bike manual
- Find All parts, tires and accessories of Electra Streetrod 21 Commuter here
- Get your Jamis Commuter 4 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Jamis Commuter 4 Commuter here