Specialized Demo Alloy 27.5 2019
Bike details
Key information split into simple groups.
Bike summary
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Frame Carbon
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Wheels 27.5"
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Travel Front 200mm
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Travel Rear 200mm
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Fork RockShox BoXXer
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Groupset GX, Truvativ Descendant
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Suspension Full
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Drivetrain 1 × 10
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Brakes Hydraulic Disc
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
M5 alloy, S3 Geometry, carbon seatstay, BB30, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm of travel
Suspension Fork
RockShox BoXXer RC 27.5, DebonAir spring, adjustable low-speed compression, adjustable rebound, short crown, 20x110mm thru-axle, 48mm offset, 200mm of travel
Rear Shock
Custom FOX Van RC, rebound & compression adjust, 9.5x3.0"
Drivetrain
Rear Derailleur
SRAM GX, Type 2.1, short cage
Shift Levers
SRAM GX, trigger, 10-speed
Cassette
SRAM PG-1030, 10 speed, 11-36t (*last three cogs removed)
Crank
Custom SRAM Descendant, BB30, 7050 alloy arms, 165mm, MRP SXg CS ISCG-05 chainguide, Steel, 36T
Bottom Bracket
SRAM BB30, 83mm
Chain
SRAM PC-1031, 10-speed
Pedals
Specialized Dirt
Wheels
Front Hub
Specialized disc, alloy flange & disc mount, sealed cartridge bearings, 20x110mm thru-axle, 32h
Rear Hub
Specialized disc, sealed cartridge bearings, 12x135mm spacing, 32h
Rims
Roval 27.5, alloy, 24mm internal width
Spokes
DT Swiss Industry
Tires
Butcher, DH casing, 60 TPI, wire bead, 27.5 x 2.5"
Brakes
Brakes
SRAM Guide RE, 4-piston caliper, hydraulic disc, 200mm
Cockpit
Stem
Specialized Direct Mount DH Stem, two-piece, forged alloy, 45mm
Handlebar
Specialized, 7050 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 800mm width
Grips
Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
Seat
Saddle
Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seatpost
Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm
Fit data
Numbers for sizing and ride feel.
| Size | Short | MD | Long | Long |
|---|---|---|---|---|
| Stack Reach Ratio | 1.56 mm | 1.47 mm | 1.4 mm | 1.34 mm |
| Bottom Bracket Height | 342 mm | 342 mm | 342 mm | 342 mm |
| Front Center | 754 mm | 779 mm | 799 mm | 819 mm |
| Rake | 52 mm | 52 mm | 52 mm | 52 mm |
| Trail | 118 mm | 118 mm | 118 mm | 118 mm |
| Stack | 608 mm | 608 mm | 608 mm | 608 mm |
| Reach | 389 mm | 414 mm | 434 mm | 454 mm |
| Top Tube Length | 565 mm | 590 mm | 610 mm | 630 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 394 mm | 394 mm | 419 mm | 419 mm |
| Head Tube Angle | 63.5 ° | 63.5 ° | 63.5 ° | 63.5 ° |
| Head Tube Length | 105 mm | 105 mm | 105 mm | 105 mm |
| Chainstay Length | 424 mm | 424 mm | 424 mm | 424 mm |
| Wheelbase | 1177 mm | 1202 mm | 1222 mm | 1242 mm |
| Bottom Bracket Drop | 12 mm | 12 mm | 12 mm | 12 mm |
| Standover Height | 692 mm | 692 mm | 692 mm | 692 mm |
| Wheels | 27" | 27" | 27" | 27" |
Model Overview
Demo Alloy 27.5 completes the Specialized Demo model. Specialized launched 63 bikes of this model so far. You can get a glimpse at all models from 2019, by clicking on this link.
Model range prices
The most economical model, the Specialized Demo Alloy 27.5 2019 has a starting price of 3400$. Specialized Demo Race 29 2019 on the other hand is the most expensive at 6500$.
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 Downhill bikes
If you want to purchase a solid Downhill bike, it is important to know that the average cost is 3391$. However, this doesn’t mean that if you spend less money on a Downhill bike, you couldn’t get a decent one. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
Furthermore, this bike was made available in 2019 for 3400$. In conclusion, this bike price is 0.27% higher than the price of the average Downhill bike.
Internal Cable Routing
Moreover, this bike comes with internal cable routing allowing you to keep the cables in a good condition. It also makes it look more professional.
Demo Alloy 27.5 components
Fork
The fork installed on this bike is the RockShox BoXXer model. The travel on this model is 200mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
As for the rear shock, this bike has the Custom FOX Van RC model, with a travel of 200mm. Bike rear shocks increase the riding comfort, and also give you more control over technical trails. In short, if you want smooth rides, get a full-suspension bicycle.
Wheels size
When it comes to wheels, the Demo Alloy 27.5 bike is equipped with the 27.5″ aluminum model. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Demo Alloy 27.5 comes with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, these are ideal for anyone.
