Dahon HAMMERHEAD 2011 VS Burley BIRDY 3 X 7 1998 specs comparison

Dahon Hammerhead 2011 comparison online with competitors

Dahon Hammerhead

General Infos
Model Hammerhead
Manufacturer Dahon
Year of production 2011
Current price Check price Here ==>   
Color choice -Shale
Sizes - Not available
Sizes - Not available

Wheels And Breaking System

Bike front tireSchwalbe Kojak
Bike rear tireNot Available
Bike wheel sizeNot Available
Brakeset type Avid Speed Dial 7 Levers
Kinetix ProStop Brakes
Hubs for disc brakesKinetix Pro
Rims manufacturerKinetix Pro
Spoke nipples typeNot Available
Spoke wheelKinetix Pro

Frame and Body Specs

Frame materials7005 aluminum c
Frame typeAluminum
Handlebar constructionKinetix CarbonLite
Handlebar extenderOptional
Handlebar stem detailsDahon Axis
Headset sizeDahon Fusion XP+

Gearing Specifications

Bicycle chainSRAM PC-971
Bottom bracket shell widthNot Available
Bottom bracket typeAmerican Classic Ultralight ISIS
Crankset parts and sizes 55/44t Teeth
FSA Gossamer
Gear shift leversSRAM Double Tap
Rear gear set9-speed

Dahon Hammerhead Fork System Data

Derailleur (Front)Microshift
Derailleur (Rear)SRAM X.9
Fork materialPuro U7 Aluminum
Fork typeDahon SlipStream

Other Specs of Dahon Hammerhead

Component group setsFolding Mix
Pedals detailsNot Available
Rear shock absorberNot Available
Saddle seatKore XCF
Seat post extension 27.2 (millimeters) Diameter
Kore Race I-Beam


Burley Birdy 3 x 7 1998 comparison online with competitors

Burley Birdy 3 x 7

General Infos
Model Birdy 3 x 7
Manufacturer Burley
Year of production 1998
Current price Check price Here ==>   
Color choice -Aluminum with clearcoat
Sizes - Rider can adjust manually

Wheels And Breaking System

Bike front tire18 X 1.5 (inches) Birdy Hi-Pressure
Bike rear tireNot Available
Bike wheel size18 (inches) Wheels
Brakeset type Dia-Compe DP-7 Levers
Dia-Compe VC-737 Brakes
Hubs for disc brakes Rear: Sachs 3 X 7
Front: Shimano Alivio
Rims manufacturer 24-hole
Alex DV-15
Spoke nipples typeBrass Nipples
Spoke wheel 1.8 (millimeters) Straight Gauge
Stainless Steel

Frame and Body Specs

Frame materials7005 T-6 Aluminum Alloy
Frame typeTIG-welded
Handlebar constructionTranz-X Zanzibar
Handlebar extenderOptional
Handlebar stem detailsBirdy Folding Adjustable
Headset size1 1/8 (inches) Threadless Aheadset AL-2

Gearing Specifications

Bicycle chain 1/2 X 3/32 (inches)
Sachs SC-40
Bottom bracket shell width68 (millimeters) English
Bottom bracket type 113 (millimeters) Spindle
Tien Hsin TH-7418 AL Sealed Cartridge
Crankset parts and sizes 56 Teeth
Dotek Pro-6
Gear shift leversSachs Wavey
Rear gear set 13 - 23 Teeth
3-speed Internal X 7-speed

Burley Birdy 3 x 7 Fork System Data

Derailleur (Front)Not Available
Derailleur (Rear)Shimano Deore XT SGS
Fork material7005 T-6 Aluminum Alloy
Fork typeBirdy Leading Arm Suspension

Other Specs of Burley Birdy 3 x 7

Component group setsBirdy Mix
Pedals detailsWellgo WPD-95B Clipless and quill Combination
Rear shock absorber 1.5 (inches) Travel
Birdy Elastomer
Saddle seatVelo Crossbow
Seat post extension 34.7 (millimeters) Diameter
Birdy Special 500 (millimeters)


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