Lowest0.69:1
Highest2.91:1
Total range423%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 26×2.5.
Velopedia Bicycle Archive
2003 Rocky Mountain Grind
Original specifications: Shimano Deore · 8-speed · mechanical rear derailleur · 26" wheels · 29.8 lb published weight.
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At a glance
Archive #39351- Model year
- 2003
- Category
- Mountain
- Original MSRP
- $1,215.00
- Sizes
- 15", 16.5", 18", 19", 20.5"
- Colors
- Army Grey
- Weight
- 29.8 lb
- Geometry
- Legacy reference
- In this record
- 27 specifications · archived image · original MSRP · geometry
Model history 1 other year
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Identification clues
2003 archived details
- Published colors
- Army Grey
- Frame
- 7005 aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7005 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Marzocchi EXR, 100mm travel |
| Fork Material | Aluminum/magnesium, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Alivio RapidFire Plus |
| Front Derailleur | Shimano Alivio, top-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano Deore SGS |
| Crankset | TruVativ Hussefelt w/ bashguard, 22/32 teeth |
| Bottom Bracket | TruVativ ISIS DH, 113mm spindle |
| BB Shell Width | 73mm English |
| Rear Cogs | 8-speed, 11 - 32 teeth |
| Chain | Shimano CN-HG50, 1/2 x 3/32" |
| Pedals | RMB Big Flats w/pins |
Brakes
| Brakes | Shimano BR-M475 Mechanical Disc brakes, Shimano Alivio levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Ritchey Logic |
|---|---|
| Handlebar | Titec Hell Bent |
| Stem | Rocky Mountain Freeride |
| Saddle | Titec Berserker |
| Seatpost | Rocky Mountain, 26.8mm diameter |
Wheels & Tires
| Hubs | Front: Shimano, Rear: Shimano Alivio Disc |
|---|---|
| Rims | Alex DX-32, 32-hole |
| Spokes | DT stainless steel, 15ga. (1.8mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.70" Maxxis Mobster |
| Rear Tire | 26 x 2.50" Maxxis Mobster |
| 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 | 598 mm |
| Head-tube angle | 70° |
| Seat-tube angle | 72.5° |
| Chainstay / rear center | 420 mm |
| Wheelbase | 1080 mm |
| Fork offset / rake | 38.1 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
Shimano CN-HG50
1/2 x 3/32"
Retailer offers
SRAM PC-830 Chain One Color, 8 Speed
Replacement option
Shimano CN-HG50 on eBaySponsored links
More parts (6)Fewer parts
Shimano BR-M475 Mechanical Disc brakes
Shimano Alivio levers
Shimano Deore SGS
Shimano Alivio RapidFire Plus
Rocky Mountain
26.8mm diameter
1 1/8" threadless Ritchey Logic
Alex DX-32
32-hole
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 2.70" Maxxis Mobster, Rear: 26 x 2.50" Maxxis Mobster
- Drivetrain
- 8-speed
- Seatpost diameter
- 26.8 mm
- Bottom bracket / shell
- TruVativ ISIS DH, 113mm spindle · 73mm English
Equipment inspection checks 11 checks based on 6 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: Marzocchi EXR, 100mm travel · Aluminum/magnesium, single crown
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi EXR, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Alivio RapidFire Plus · Front derailleur: Shimano Alivio, top-pull/clamp-on 31.8mm · Rear derailleur: Shimano Deore SGS · Crankset: TruVativ Hussefelt w/ bashguard, 22/32 teeth · Bottom bracket: TruVativ ISIS DH, 113mm spindle · Rear cogs: 8-speed, 11 - 32 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano BR-M475 Mechanical Disc brakes, Shimano Alivio levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex DX-32, 32-hole · Hubs: Front: Shimano, Rear: Shimano Alivio Disc · Front tire: Front: 26 x 2.70" Maxxis Mobster, Rear: 26 x 2.50" Maxxis Mobster
Controls and contact points
Archived: Headset: 1 1/8" threadless Ritchey Logic · Handlebar: Titec Hell Bent · Stem: Rocky Mountain Freeride · Seatpost: Rocky Mountain, 26.8mm diameter · Saddle: Titec Berserker · Pedals: RMB Big Flats w/pins
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.