Lowest0.86:1
Highest3.00:1
Total range350%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 26×1.95.
Velopedia Bicycle Archive
1999 Diamondback Response
Original specifications: Shimano AceraX drivetrain · 26" wheels · 27.5 lb published weight.
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At a glance
Archive #83638- Model year
- 1999
- Category
- Mountain
- Original MSRP
- $309.99
- Sizes
- 14", 16", 18", 20", 22"
- Colors
- Ivory/Ruby, Yellow
- Weight
- 27.5 lb
- Geometry
- Legacy reference
- In this record
- 28 specifications · archived image · original MSRP · geometry
Model history 16 other years
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Identification clues
1999 archived details
- Published colors
- Ivory/Ruby, Yellow
- Frame
- 7005 aluminum w/replaceable derailleur hanger
- Original equipment
- Shimano AceraX
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7005 aluminum w/replaceable derailleur hanger · Shimano AceraX · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum w/replaceable derailleur hanger |
| Fork | Diamondback |
| Fork Material | Chromoly, oversize, unicrown crown |
Drivetrain
| Component Group | Shimano AceraX |
|---|---|
| Shifters | Shimano AceraX EZ Fire |
| Front Derailleur | Shimano AceraX top-swing, top-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano AceraX |
| Crankset | Shimano Altus, 24/34/42 teeth |
| Bottom Bracket | YST BB 969, 116mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 14 - 28 teeth |
| Chain | KMC Z-51, 1/2 x 3/32" |
| Pedals | Wellgo LU-983D |
Brakes
| Brakes | Tektro 823A linear-pull brakes, Shimano AceraX levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Aheadset STS |
|---|---|
| Handlebar | Lee Chi |
| Handlebar Extensions | Not included |
| Stem | JD aluminum |
| Saddle | Diamondback All-Terrain |
| Seatpost | Aluminum micro-adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Joy Tech aluminum, Q/R |
|---|---|
| Rims | Kin Lin RT-6n, 36-hole |
| Spokes | Shuhn Lih stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 1.95" Kenda K-877 |
| Rear Tire | 26 x 1.95" Kenda K-887 |
| Wheel Size | 26" wheels |
No specifications match. Try a component name or clear your search.
Geometry
Historical measurements. Frame size unknown.
Reference drawing
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 6 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 571.5 mm |
| Head-tube angle | 71.5° |
| Seat-tube angle | 74° |
| Chainstay / rear center | 424.2 mm |
| Wheelbase | 1064.3 mm |
| Fork offset / rake | 45 mm |
Frame size not recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
Aluminum micro-adjust
27.2mm diameter
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
26 x 1.95" Kenda K-877
Replacement search: 26x1.95 bicycle tire Before ordering: Check rim type and tire clearance.
More parts (3)Fewer parts
Tektro 823A linear-pull brakes
Shimano AceraX levers
Wellgo LU-983D
Shimano Altus
24/34/42 teeth
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Front: 26 x 1.95" Kenda K-877, Rear: 26 x 1.95" Kenda K-887
- Drivetrain
- 7-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- YST BB 969, 116mm spindle · 68mm English
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Diamondback · Chromoly, oversize, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano AceraX · Shifters: Shimano AceraX EZ Fire · Front derailleur: Shimano AceraX top-swing, top-pull/clamp-on 31.8mm · Rear derailleur: Shimano AceraX · Crankset: Shimano Altus, 24/34/42 teeth · Bottom bracket: YST BB 969, 116mm spindle · Rear cogs: 7-speed, 14 - 28 teeth · Chain: KMC Z-51, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Tektro 823A linear-pull brakes, Shimano AceraX levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Kin Lin RT-6n, 36-hole · Hubs: Joy Tech aluminum, Q/R · Front tire: Front: 26 x 1.95" Kenda K-877, Rear: 26 x 1.95" Kenda K-887
Controls and contact points
Archived: Headset: 1 1/8" threadless Aheadset STS · Handlebar: Lee Chi · Stem: JD aluminum · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: Diamondback All-Terrain · Pedals: Wellgo LU-983D
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