GT ZUM 4.0 2006 VS Electra AMSTERDAM BALLOON 2009 specs comparison

GT ZuM 4.0
General InfosModel | ZuM 4.0 |
Manufacturer | GT |
Year of production | 2006 |
Current price | Check price Here ==> |
Color choice | -Light Silver |
Sizes | - Xsmall - small - medium - large - xlarge |
Sizes | - Xsmall - small - medium - large - xlarge |
Wheels And Breaking System
Bike front tire | 26 X 1.25 (inches) Tioga City Slicker |
Bike rear tire | Not Available |
Bike wheel size | 26 (inches) Wheels |
Brakeset type | 110 (millimeters) Arms 70 (millimeters) DIN Pads Brakes Shimano ST-EF29 LeversTektro Linear Pull |
Hubs for disc brakes | Rear: Alloy QR Casette HubFront: Alloy QR Hub |
Rims manufacturer | Double Wall Alloy Rims With CNC Type Sidewall |
Spoke nipples type | Brass CP |
Spoke wheel | 14ga. Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | GT Triple Triangle 6061 Custom Tube-set |
Frame type | TIG-welded |
Handlebar construction | Butted 6061 Heat Treated AluminumGT Riser Bar |
Handlebar extender | Not Available |
Handlebar stem details | Threadless 25 Degree Rise With 4 Bolt Alum Face PlateGT ATB |
Headset size | FSA Integrated |
Gearing Specifications
Bicycle chain | Shimano |
Bottom bracket shell width | Not Available |
Bottom bracket type | Cartridge Sealed |
Crankset parts and sizes | 22/32/44 TeethSuntour XCT-252 |
Gear shift levers | Shimano ST-EF29 |
Rear gear set | 11 - 32 Teeth8-speed |
GT ZuM 4.0 Fork System Data
Derailleur (Front) | Shimano Acera |
Derailleur (Rear) | Shimano Acera |
Fork material | Steel and aluminum and magnesium |
Fork type | 50 (millimeters)SR NRX-6000 |
Other Specs of GT ZuM 4.0
Component group sets | Co (millimeters)uter Mix |
Pedals details | High Impact Nylon Platform |
Rear shock absorber | Not Available |
Saddle seat | WTB Speed V |
Seat post extension | GT Aluminum 6061 |

Electra Amsterdam Balloon
General InfosModel | Amsterdam Balloon |
Manufacturer | Electra |
Year of production | 2009 |
Current price | Check price Here ==> |
Color choice | -Black |
Sizes | - Standard size for everyone |
Wheels And Breaking System
Bike front tire | 26 X 2.35 (inches) Schwalbe Fat Frank |
Bike rear tire | Not Available |
Bike wheel size | 26 (inches) Wheels |
Brakeset type | Alloy 4 Finger Reach Adjust LeversShimano Nexus Roller Brake Brakes |
Hubs for disc brakes | Rear: Shimano Nexus BR-IM70Front: Shimano Nexus BR-IM41 |
Rims manufacturer | 36-holeAlloy |
Spoke nipples type | Brass |
Spoke wheel | 14ga. Stainless |
Frame and Body Specs
Frame materials | High Tensile Steel |
Frame type | TIG-welded |
Handlebar construction | Alloy Custom Bend Riser |
Handlebar extender | Optional |
Handlebar stem details | 3D Forged |
Headset size | 1 (inches) Aheadset |
Gearing Specifications
Bicycle chain | KMC Z72 |
Bottom bracket shell width | 68 (millimeters) |
Bottom bracket type | 118 (millimeters) SpindleSealed Cartridge |
Crankset parts and sizes | 42 TeethForged Alloy With Chainguard |
Gear shift levers | Shimano Alivio Rapid Fire |
Rear gear set | 11 - 32 Teeth8-speed |
Electra Amsterdam Balloon Fork System Data
Derailleur (Front) | Not Available |
Derailleur (Rear) | Shimano Acera |
Fork material | Unicrown CrownSteel |
Fork type | Not Available |
Other Specs of Electra Amsterdam Balloon
Component group sets | Co (millimeters)uter Mix |
Pedals details | Alloy Platform With Kraton Inserts |
Rear shock absorber | Not Available |
Saddle seat | Retro Leatherette With Springs |
Seat post extension | 25.6 (millimeters) DiameterButted Alloy Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its ZuM 4.0 bike manual
- Find All parts, tires and accessories of GT ZuM 4.0 Commuter here
- Get your Electra Amsterdam Balloon manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Electra Amsterdam Balloon Commuter here