GT Thumper 2000 Technical specs and features
| Brand | GT |
| Model | Thumper |
| First production | 2000 |
| Bike category | Freestyle |
| Bike sub-category | Freestyle And Jumping |
| Bike Pricing | Check price Here ==> |
| Parts And Accessories | GT Thumper Parts |
| Available Sizes | - Not available |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Powerlite Retro Tread Front: 20 X 2.125 (inches) Powerlite Retro Tread |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe MX-101 Rear Levers DiaTech 996 U-Brake Rear Brakes |
| Hubs for disc brakes | GT Mohawk |
| Rims manufacturer | 48-hole Weinmann ZAC-X |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) |
Frame and Body Specifications
| Frame materials | Chromoly |
| Frame type | TIG-welded |
| Handlebar construction | GT Freestyle |
| Handlebar extender | Optional |
| Handlebar stem details | GT Johnson |
| Headset size | 1 1/8 (inches) Threadless Aheadset SB-1 With SST Oryg Detangler |
Gearing Specs
| Bicycle chain | 1/2 X 1/8 (inches) KMC |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Sealed Cartridge |
| Crankset parts and sizes | 44 Teeth GT 3-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Thumper Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Chromoly |
| Fork type | GT |
Other Specs of GT Thumper
| Component group sets | Not Available |
| Available colors | - Gangreen - Propane |
| Weight | Not Available |
| Pedals details | GT Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT |
| Seat post extension | GT Aluminum Micro-adjust |
GT Thumper picture
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GT Thumper bike review
GT produced the Thumper bike in 2000 and can be classified as a Freestyle bicycle, this exact model costs in american market arround $478.00.
GT Freestyle Thumper can be found in a few colors, among these colors Gangreen and Propane .
This bike is equiped with Front: 20 x 2.125" Powerlite Retro Tread tires and 2.0mm spoke wheel while the rims are manufactured by Weinmann ZAC-X, 48-hole. GT equiped this exact model with DiaTech 996 U-Brake rear brakes, Dia-Compe MX-101 rear levers braking system and GT Mohawk hubs.
To guarantee the comfiest ride GT used Chromoly material for the frame. GT Freestyle high strength material is used on the handlebar of this Thumper to ensure the perfect handling while the stems are made of GT Johnson.
For the smoothest biking experience GT 3-piece chromoly, 44 teeth is used on this bicycle linked to KMC chain that is easily replaceable as stated by GT.