Marin PORTOFINO 2011 VS GT GTR SERIES 4 2010 specs comparison
Marin Portofino
General InfosModel | Portofino |
Manufacturer | Marin |
Year of production | 2011 |
Current price | Check price Here ==> |
Color choice | -Black and orange |
Sizes | - Extra small - Small - Medium - Large |
Sizes | - Extra small - Small - Medium - Large |
Wheels And Breaking System
Bike front tire | 700 X 23c Kenda Koncept |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Shimano Integrated LeversDual Pivot Brakes |
Hubs for disc brakes | Formula |
Rims manufacturer | 28-hole and 32-holeAlex R450 |
Spoke nipples type | Not Available |
Spoke wheel | 15ga. WTB Stainless |
Frame and Body Specs
Frame materials | 6061 Double Butted Aluminum |
Frame type | Aluminum |
Handlebar construction | FSA Vero Compact |
Handlebar extender | Optional |
Handlebar stem details | Alloy Threadless |
Headset size | 1 1/8 (inches) Ritchey Logic Comp |
Gearing Specifications
Bicycle chain | Shimano HG40 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Sealed Cartridge |
Crankset parts and sizes | 52/42/30t TeethFSA Vero Triple |
Gear shift levers | Shimano 2300 STI |
Rear gear set | 12 - 25 Teeth8-speed |
Marin Portofino Fork System Data
Derailleur (Front) | Shimano 2300 |
Derailleur (Rear) | Shimano Sora |
Fork material | Carbon |
Fork type | RFE Carbon |
Other Specs of Marin Portofino
Component group sets | Shimano Mix |
Pedals details | Not Available |
Rear shock absorber | Not Available |
Saddle seat | Marin Plush Road |
Seat post extension | 27.2 (millimeters) DiameterAlloy Micro Adjust |

GT GTR Series 4
General InfosModel | GTR Series 4 |
Manufacturer | GT |
Year of production | 2010 |
Current price | Check price Here ==> |
Color choice | - Black and Lime-White and Blue |
Sizes | - Xsmall - small - medium - large - xlarge |
Wheels And Breaking System
Bike front tire | 700 X 23c Vittoria Zaffiro |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Shimano STI LeversDual Pivot Brakes |
Hubs for disc brakes | Rear: Formula CassetteFront: Formula |
Rims manufacturer | Alex R500 |
Spoke nipples type | Chrome Plated Brass |
Spoke wheel | 15ga. Stainless |
Frame and Body Specs
Frame materials | Kinesis 6061 Butted and hydroformed Tubing |
Frame type | TIG-welded |
Handlebar construction | GT 6061 |
Handlebar extender | Optional |
Handlebar stem details | Ritchey Comp 3D Forged |
Headset size | 1 1/8 (inches) TH Sealed |
Gearing Specifications
Bicycle chain | Shimano |
Bottom bracket shell width | Not Available |
Bottom bracket type | Sealed Cartridge |
Crankset parts and sizes | 39/50 TeethFSA Vero Compact |
Gear shift levers | Shimano STI |
Rear gear set | 12 - 25 Teeth8-speed |
GT GTR Series 4 Fork System Data
Derailleur (Front) | Shimano Compact |
Derailleur (Rear) | Shimano Sora |
Fork material | Carbon Fiber and chromoly Steerer |
Fork type | GT Carbon |
Other Specs of GT GTR Series 4
Component group sets | Shimano Sora Mix |
Pedals details | Nylon With Clip And Strap |
Rear shock absorber | Not Available |
Saddle seat | GT Road |
Seat post extension | Alloy |
Useful links and guides ....
- To know more about this exacte bike, Marin provided us with the latest version of its Portofino bike manual
- Find All parts, tires and accessories of Marin Portofino Road here
- Get your GT GTR Series 4 manual book version yo know further about this bike
- Saddles, tires And mechanical parts for GT GTR Series 4 Road here