Bicycle Archive · Specification report

2017 Specialized Demo 8 II Alloy

Velopedia Archive ID 900003756

Overview

Model year	2017
Brand	Specialized
Model	Demo 8 II Alloy
Bicycle type	Mountain
Archive ID	900003756
Colors	Warm Charcoal/rocket Red/black

Frameset

Frame construction	M5 alloy, S3 Geometry, carbon link and seatstay, BB30, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm of travel
Frame material	Carbon Fiber
Fork	RockShox BoXXer Team 650b, coil spring, S: Extra soft spring, M: Soft spring, L: Medium spring, XL: Firm spring, 200mm of travel, charger damper, compression adjust, rebound adjust, alloy steerer, 48mm offset, Maxle Lite DH
Fork material	Aluminum
Rear shock	Custom Öhlins TTX, Twin-Tube desgin, high and low-speed compression adjust, rebound adjust, 9.5x3""

Drivetrain

Shifters	SRAM X9, 10-speed, trigger
Rear derailleur	SRAM X0 Type 2.1, short cage, 10-speed
Crankset	SRAM X0 DH, BB30, carbon arms, triple base w/Gamut bashguard 165mm; chainrings: SRAM 36T
Bottom bracket	SRAM BB30, 83mm
BB shell width	83 mm
Cassette	SRAM PG-1030, 10-speed, 11-36t
Chain	SRAM PC-1031, 10-speed w/PowerLink
Pedals	Specialized Bennies, 6061 alloy body, sealed cartridge bearings, 4.5mm removable pins

Brakes

Brakes	(F) SRAM Guide RS lever, hydraulic disc, organic pads, Code calipers, 200mm rotor / (R) SRAM Guide RS, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm rotor

Cockpit & contact points

Handlebar	Specialized DH, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 25mm rise, 800mm, 31.8mm
Stem	Specialized P.Series MTB, forged alloy, 4-bolt, 45mm
Saddle	Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seatpost	Thomson, alloy, straight, 12-degree clamp

Wheels & tires

Hubs	(F) Specialized disc, alloy flange & disc mount, sealed cartridge bearings, 20mm thru-axle, 32h / (R) Custom DT Swiss 350, 135mm spacing, SRAM XD driver, 54T ratchet, 12mm thru-axle, 32h
Rims	Roval 650b, alloy, 24mm inner width, 32h
Spokes	DT Swiss Industry, stainless, 3x, 2.0""
Front tire	Butcher, DH casing, 650bx2.5"", 60TPI, wire bead
Rear tire	Slaughter, DH casing, 650bx2.3"", 60TPI, wire bead

Geometry · SHORT

Seat tube	367 mm
Effective top tube	571 mm
Head tube	105 mm
Head-tube angle	63.5°
Seat-tube angle	74°
Chainstay / rear center	430 mm
Wheelbase	1183 mm
Bottom-bracket drop	12 mm
Bottom-bracket height	342 mm
Reach	395 mm
Stack	614 mm
Fork offset / rake	52 mm
Front center	754 mm
Trail	118 mm
Fork length / axle-to-crown	590 mm
Seatpost length	367 mm
Crank length	165 mm
Stem length	45 mm
Handlebar width	800 mm

Geometry · MEDIUM

Seat tube	367 mm
Effective top tube	596 mm
Head tube	105 mm
Head-tube angle	63.5°
Seat-tube angle	74°
Chainstay / rear center	430 mm
Wheelbase	1208 mm
Bottom-bracket drop	12 mm
Bottom-bracket height	342 mm
Reach	420 mm
Stack	614 mm
Fork offset / rake	52 mm
Front center	779 mm
Trail	118 mm
Fork length / axle-to-crown	590 mm
Seatpost length	367 mm
Crank length	165 mm
Stem length	45 mm
Handlebar width	800 mm

Geometry · LONG

Seat tube	367 mm
Effective top tube	616 mm
Head tube	105 mm
Head-tube angle	63.5°
Seat-tube angle	74°
Chainstay / rear center	430 mm
Wheelbase	1228 mm
Bottom-bracket drop	12 mm
Bottom-bracket height	342 mm
Reach	440 mm
Stack	614 mm
Fork offset / rake	52 mm
Front center	799 mm
Trail	118 mm
Fork length / axle-to-crown	590 mm
Seatpost length	367 mm
Crank length	165 mm
Stem length	45 mm
Handlebar width	800 mm

Geometry · EXTRA LONG

Seat tube	367 mm
Effective top tube	636 mm
Head tube	105 mm
Head-tube angle	63.5°
Seat-tube angle	74°
Chainstay / rear center	430 mm
Wheelbase	1248 mm
Bottom-bracket drop	12 mm
Bottom-bracket height	342 mm
Reach	460 mm
Stack	614 mm
Fork offset / rake	52 mm
Front center	819 mm
Trail	118 mm
Fork length / axle-to-crown	590 mm
Seatpost length	367 mm
Crank length	165 mm
Stem length	45 mm
Handlebar width	800 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 26, 2026.