Jamis BOSSY 20 1997 VS Specialized HOTROCK 24 21-SPEED BOYS 2015 specs comparison
Jamis Bossy 20
General Infos| Model | Bossy 20 |
| Manufacturer | Jamis |
| Year of production | 1997 |
| Current price | Check price Here ==> |
| Color choice |
- purple -Pink |
| Sizes |
- 12 (inches) |
| Sizes |
- 12 (inches) |
Wheels And Breaking System
| Bike front tire | 20 X 2.125 (inches) Cheng Shin C-640 |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | KT Coaster Brake |
| Hubs for disc brakes | Rear: Kung Ten Coaster Brake Nutted Front: Kung Ten Aluminum |
| Rims manufacturer | 36-hole CMC 7X Steel |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 105g Straight Gauge Shuhn Lih Steel |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Cruiser Bend |
| Handlebar extender | Not Available |
| Handlebar stem details | Hsin Lung MX-552 |
| Headset size | 1 (inches) Chin Haur CH60-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC 410 |
| Bottom bracket shell width | 68 (millimeters) Threadless |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 36 Teeth 1-piece 5 1/2 (inches) |
| Gear shift levers | Not Available |
| Rear gear set | 18 Teeth 1-speed |
Jamis Bossy 20 Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Akisu |
Other Specs of Jamis Bossy 20
| Component group sets | Not Available |
| Pedals details | Victor VP-810 |
| Rear shock absorber | Not Available |
| Saddle seat | Viscount 5034 |
| Seat post extension | 25.4 (millimeters) Diameter Steel Pillar |
Specialized HOTROCK 24 21-SPEED BOYS
General Infos| Model | HOTROCK 24 21-SPEED BOYS |
| Manufacturer | Specialized |
| Year of production | 2015 |
| Current price | Check price Here ==> |
| Color choice |
- Orange and Black and White -Black and White and Cyan |
| Sizes |
- 11.5 (inches) - 13.5 (inches) |
Wheels And Breaking System
| Bike front tire | 24x2.125 (inches) 30TPI Wire Bead Specialized Roller |
| Bike rear tire | Not Available |
| Bike wheel size | 24 |
| Brakeset type | 60 (millimeters) Pads Die-cast Alloy V-brake |
| Hubs for disc brakes | 3/8 (inches) Axle 32h 32h Alloy Dual Lock Nuts With 17 (millimeters) Contact Side Dual Lock Nuts With 17 (millimeters) Contact Side Loose Ball Loose Ball Nutted Steel Nutted Alloy |
| Rims manufacturer | 32h Alloy Single Wall Pin Joint 24 (inches) |
| Spoke nipples type | Not Available |
| Spoke wheel | 14g With Brass Nipple Stainless |
Frame and Body Specs
| Frame materials | Aluminum |
| Frame type | Forged Dropouts Formed Toptube and downtube Replaceable Alloy Derailleur Hanger Specialized A1 Premium Aluminum |
| Handlebar construction | 10-degree Backsweep 25.4 (millimeters) 4-degree Upsweep Steel Kid's Flat |
| Handlebar extender | Not Available |
| Handlebar stem details | 20-degree Rise 4-bolt Forged Alloy Ahead |
| Headset size | 1/8 (inches) Sealed Cartridge Bearings Ahead |
Gearing Specifications
| Bicycle chain | 1/2 (inches)x3/32 (inches) KMC HV500 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Semi-cartridge With Bolts 68x119 (millimeters) |
| Crankset parts and sizes | 42/34/24 Steel With Chainguard Forged Alloy Arms |
| Gear shift levers | 7-speed Shimano Revo-Shift |
| Rear gear set | 14-28 7-speed Freewheel Shimano |
Specialized HOTROCK 24 21-SPEED BOYS Fork System Data
| Derailleur (Front) | Shimano Tourney |
| Derailleur (Rear) | 7-speed MegaRange Shimano TX-35 |
| Fork material | Suspension |
| Fork type | 1 Pc. Alloy Lower 1-1/8 (inches) Steerer 50 (millimeters) Travel Hi-Ten 25.4 (millimeters) Stanchions Coil and MCU Spring Direct Press Type Dust Seal Disc And V-brake Mount Preload Adjust SR Suntour XCT-JR-24 |
Other Specs of Specialized HOTROCK 24 21-SPEED BOYS
| Component group sets | Youth Mix |
| Pedals details | 9/16 (inches) With Reflectors Composite Platform |
| Rear shock absorber | Not Available |
| Saddle seat | Not Available |
| Seat post extension | Not Available |
Useful links and guides ....
- To know more about this exacte bike, Jamis provided us with the latest version of its Bossy 20 bike manual
- Find All parts, tires and accessories of Jamis Bossy 20 Youth here
- Get your Specialized HOTROCK 24 21-SPEED BOYS manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Specialized HOTROCK 24 21-SPEED BOYS Youth here