Specialized Rockhopper Expert Disc 29 Single-Speed 2009
2009 Mountain
Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 29" -
Travel Front 80mm -
Groupset Truvativ -
Suspension Hardtail -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Specialized M4 manipulated alloy frame, 29"" geometry, fully butted, ORE DT, 2-piece forged adjustable dropouts w/ SShanger, disc only
Suspension Fork
Rock Shox Tora Race 29er, 80mm, 32mm Cr-Mo stanchions, magnesium lower, Solo Air spring w/ Motion Control damper, LO and rebound adj. disc only
Drivetrain
Cassette
20t Cr-Mo cog, 1/2' x 3/32"" for casssette hub
Crank
Truvativ Fire-Ex, 2pc, forged alloy arms for GXP
Bottom Bracket
Truvativ GXP, Outboard cartridge bearings, 68mm x 118mm
Chain
KMC X9 w/ reuseable Missing Link
Pedals
Alloy body and cage, 9/16""
Wheels
Front Hub
Specialized Hi Lo, forged alloy, double sealed, ground race, 28h, QR
Rear Hub
Specialized, cassette, forged alloy, double sealed, ground race, QR, 32h w/ conversion kit for single speed cog
Rims
Specialized RHD 29"", double wall disc, pinned w/ eyelets, 28/32h
Spokes
1.8mm (15g) stainless
Tires
Specialized Fast Trak Control, 29x2.0"", 60TPI, aramid bead, 2Bliss ready
Brakes
Brakes
Tektro Auriga Comp, hydraulic disc, dual piston w/ 160mm rotor
Brake Levers
Tektro Auriga Comp
Cockpit
Stem
Specialized 3D forged, 4-bolt, 7 degree rise, 31.8mm clamp
Handlebar
Specialized butted alloy, 31.8mm, 25mm rise, 640mm wide, 8 degree back sweep, 8 degree up, 2.6mm thick
Grips
Specialized Enduro, dual compound Kraton, no flange, 131mm
Headset
Specialized 1-1/8"" threadless, loose ball
Seat
Saddle
Specialized Indie XC, Body Geometry, 143mm width, front and rear bumpers
Seatpost
Specialized alloy two bolt, micro adjust head, 30.9mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 15" | 17" | 19" | 21" | 23" |
|---|---|---|---|---|---|
| Bottom Bracket Height | 299 mm | 299 mm | 299 mm | 299 mm | 299 mm |
| Top Tube Length | 568 mm | 593 mm | 623 mm | 648 mm | 668 mm |
| Seat Tube Angle | 74 ° | 73.5 ° | 73.5 ° | 73.5 ° | 73.5 ° |
| Seat Tube Length | 381 mm | 432 mm | 483 mm | 533 mm | 584 mm |
| Head Tube Angle | 70.5 ° | 70.5 ° | 70.5 ° | 70.5 ° | 70.5 ° |
| Head Tube Length | 90 mm | 90 mm | 100 mm | 120 mm | 140 mm |
| Chainstay Length | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1065 mm | 1090 mm | 1120 mm | 1145 mm | 1167 mm |
| Bottom Bracket Drop | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm |
| Standover Height | 698 mm | 768 mm | 798 mm | 833 mm | 873 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" |
About this model
Rockhopper Expert Disc 29 Single-Speed is a Specialized Rockhopper model. Specialized launched 119 bikes of this model so far. You can get a glimpse at all models from 2009, by clicking on this link.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Crosscountry bikes
Our math shows that the average cost of a dependable Crosscountry bike is 1905$. However, you could also get a good Crosscountry bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Rockhopper Expert Disc 29 Single-Speed components
Fork material
Rockhopper Expert Disc 29 Single-Speed has a steel fork, which is tougher than carbon in the case of an impact. However, it can add some extra weight to the bike.
Wheels
When it comes to wheels, the Rockhopper Expert Disc 29 Single-Speed bike is equipped with the 29″ aluminum model. These wheels are more forgiving when you go over roots, rocks, bumps, or other obstacles you encounter on your ride. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
For your safety, it is important to have quality breaks on your bike. Specialized Rockhopper Expert Disc 29 Single-Speed has Hydraulic Disc brakes installed. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, these are ideal for anyone.