GT JETSTREAM 1999 VS Jamis ALLEGRO 1X 2008 specs comparison

GT Jetstream
General InfosModel | Jetstream |
Manufacturer | GT |
Year of production | 1999 |
Current price | Check price Here ==> |
Color choice | - Vivid Green-Regal Blue |
Sizes | - 14 (inches)- 16 (inches)- 18 (inches)- 20 (inches)- 22 (inches) |
Sizes | - 14 (inches)- 16 (inches)- 18 (inches)- 20 (inches)- 22 (inches) |
Wheels And Breaking System
Bike front tire | 700 X 40c Multi-terrain |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Alloy LeversShimano Nexave Modulated V Brakes |
Hubs for disc brakes | Rear: Shimano Nexus Roller BrakeFront: Shimano Altus |
Rims manufacturer | 36-holeAraya PX-645 |
Spoke nipples type | Not Available |
Spoke wheel | 2.0 (millimeters) Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | 7000 aluminum c |
Frame type | Welded |
Handlebar construction | High-rise Steel |
Handlebar extender | Optional |
Handlebar stem details | High RiseAluminum |
Headset size | 1 1/8 (inches) Sealed Mechanism |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches)Shimano CN-IG31 |
Bottom bracket shell width | Not Available |
Bottom bracket type | Shimano Cartridge |
Crankset parts and sizes | 24/34/42 TeethShimano AceraX |
Gear shift levers | Grip Shift MRX |
Rear gear set | 11 - 28 Teeth7-speed |
GT Jetstream Fork System Data
Derailleur (Front) | Shimano AceraX Top-swing |
Derailleur (Rear) | Shimano Alivio |
Fork material | Aluminum and chromoly |
Fork type | 1.6 (inches) TravelRST 801 |
Other Specs of GT Jetstream
Component group sets | Hybrid Mix |
Pedals details | Alloy With Alloy Cage |
Rear shock absorber | Not Available |
Saddle seat | GT |
Seat post extension | AdjustableKalloy Aluminum Suspension |

Jamis Allegro 1X
General InfosModel | Allegro 1X |
Manufacturer | Jamis |
Year of production | 2008 |
Current price | Check price Here ==> |
Color choice | - Tech Silver and Pearl White-Pearl White and Victory Red |
Sizes | - 16 (inches)- 17.5 (inches)- 19.5 (inches)- 21.5 (inches)- 23 (inches) |
Wheels And Breaking System
Bike front tire | 700 X 35c Vittoria Randonneur Trail |
Bike rear tire | Not Available |
Bike wheel size | 700c Wheels |
Brakeset type | Tektro Alloy LeversTektro Direct Pull Brakes |
Hubs for disc brakes | Formula Alloy QR |
Rims manufacturer | 32-holeAlex ACE-24 |
Spoke nipples type | Not Available |
Spoke wheel | 14ga. Straight GaugeStainless Steel |
Frame and Body Specs
Frame materials | 6061 aluminum c |
Frame type | TIG-welded |
Handlebar construction | Jamis Alloy Flat Bar |
Handlebar extender | Not Available |
Handlebar stem details | NVO Adjustable |
Headset size | 1 1/8 (inches) Threadless Internal AheadSet |
Gearing Specifications
Bicycle chain | 1/2 X 3/32 (inches)KMC Z82 |
Bottom bracket shell width | 68 (millimeters) English |
Bottom bracket type | 113 (millimeters) SpindleSealed Cartridge |
Crankset parts and sizes | 28/38/48 TeethRPM Alloy Triple |
Gear shift levers | Shimano Alivio |
Rear gear set | 11 - 32 Teeth8-speed |
Jamis Allegro 1X Fork System Data
Derailleur (Front) | Bottom-pull and clamp-onShimano C051 |
Derailleur (Rear) | Shimano Acera |
Fork material | Single |
Fork type | 63 (millimeters) TravelSR Suntour NCX-4610-HLO |
Other Specs of Jamis Allegro 1X
Component group sets | Hybrid Mix |
Pedals details | Alloy Platform |
Rear shock absorber | Not Available |
Saddle seat | Jamis Touring |
Seat post extension | 27.2 (millimeters) DiameterAlloy Micro-adjust |
Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Jetstream bike manual
- Find All parts, tires and accessories of GT Jetstream Hybrid here
- Get your Jamis Allegro 1X manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Jamis Allegro 1X Hybrid here