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2015 Specialized Enduro Comp 650b Bike (discontinued)

Average User Rating: (Excellent)
2015 Specialized Enduro Comp 650b - gloss charcoal:white:cyan
2015 Specialized Enduro Comp 650b Bike 2015 Specialized Enduro Comp 650b Bike 2015 Specialized Enduro Comp 650b Bike
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Specialized Enduro 650b Comp

Rating: Featured Member Review
The Good:

good geo for aggressive riding, wide rims, good value

The Bad:

no XL size, no dropper post

Overall Review:

Afterridingthe enduro 29er for about a year, I decided to swap it out for the newer, slightly smaller wheel-sized iteration of the bike in the middle of summer last year.  Although I was content with my current rig, I saw that the numbers on the bike were a little bit closer to what I was looking for so I took the plunge. I opted for the lowest level model and have found it to be a great all around ripper.  Simply put, this bike is a lot of fun to ride. 


Compared to the 29er, the 650b version doesn't quite have that monster-truck-over-the-rough feel to it, yet for me it surpasses the 29er on the techy maneuvers and on jumps.  The chain stay length and the wheelbase of the bike is shorter than many other like-minded bikes.  For me that is a positive attribute as it allows for quick line changes and makes me seek out places to catch air on the trail.  Gravity junkies will also enjoy the fact that the head angle was slackened to 65.5 degrees and the rear travel is 165mm.  It's probably obvious that it's not the best climber in the world but it gets you to the tops without complaints, especially if you throw on a 42 tooth cog!

Here's what I noticed for improvements over the previous year's specification for the enduro and other aspects about the bike that stand out...

Suspension: This is my second Rock Shox Pike and it is a great fork, even the RC version.  The shock is more of the weak link here.  It hasn't been that bad, but I've found that I'm either putting too much air pressure in it to handle the big hits or, in search of better small bump eating, I am blowing through the travel on the bigger hits. I'll admit that I'm not one for fiddle with switches much and the few times I've flipped the CTD to climb a long grind better, I've gotten down to the parking lot and realized I was still in climb mode.  I would be tempted to sell it and buy something better if it wasn't a proprietary item. Part of the appeal of an upgrade (if Specialized even makes a shock mount for the one I'm interested in buying) is that you can offset part of the cost of the new item from the sale of the current. Yet the best case scenario here would be to keep it as a backup since resale is essentially zero.  I'm sure my plea will fall on deaf ears but if you are going to spec proprietary parts like this, then at least have an upgrade option at the time of purchase.

Wheels: Specialized should be commended for the goldilocks rims on this bike.  No, I'm not talking about the 27.5 inch diameter wheels but rather the rim width of the alloy Roval Fatties that come stock.  The internal width measures 29mm and was a noticeable enhancement over 23mm. Think of how many bikes these days come straight from the manufacturer with wide rims. The answer is not many.  So if you want to go that way, you're looking at a pricey upgrade. Very wide rims (35-40mm) may or may not be the future but right now I like how the butchers fill out yet keep a good corner on the medium width rim. The strength and weight are reasonable and the wheels have held true for me so far.

Brakes:  The Formula brakes that were on the last year's rig worked well enough but would slowly get spongy and needed a bleed every couple of months.  Going to Shimano's brakes was a good call as they are widely regarded as the best out there.  Having been on various Shimano brakes over the past few years I can say that the lower spec'd Deore feel no different to me than the XTs.

Drivetrain: All of the higher models of this bike come with some version of Sram's 1x11 drivetrain including a 10-42 cassette.  The comp comes with a 1x drivetrain but it's the 10 speed clutch derailleur paired to a 11-36 cassette.  I already had owned a larger, 42 tooth aftermarket cog so adding it in helped widen the gear range a bit. It is a compromise in shifting performance but worth it in my opinion.  One nice touch was the inclusion of a upper-only chainguide. This minimal guide attaches via the ISCG tabs and offers additional peace of mind through the rough stuff.  When paired with the narrow-wide ring, I've not dropped a chain.

Misc notes: Thankfully Specialized updated the seatpost collar from a poor quality quick release to a functional binder bolt. The seat tube is almost an inch shorter than it was on the 29er and this also means that the stand over is a little better too. That was good news for me as I like lowering my seat as much out of the way as possible on steeps and jumps.  My size medium bike weighs a smidge over 30 pounds with pedals, a reverb dropper, and butcher "grid" casing tires which have a tougher (and heavier) sidewall than stock.  After owning black colored bikes for a few years in a row, I was glad to mix it up with the white, red and black combo.  I think this color looks really sharp and it's too bad Specialized doesn't have it, or the electric blue color, as an option on the other aluminum model known as the elite.  The paint itself has held up fairly well to the usual scrapes and rocks chipping away on it and I did add a number of the included clear protective stickers to the frame to guard against cable rub.

Overall, the enduro 650b is a great do-it-all bike with an emphasis on descending and being able to tackle the technical and bigger hits out there.  Attention to detail on the small things has led to improvements over the previous years specifications and result in a bike with few flaws.  Though the comp model may not be blingy enough for many riders out there, I think the components are solid enough. I've come to terms with my few complaints and have found a happy medium for the shock performance. A couple of tweaks including the mandatory dropper post and a better shock would take this bike to the next level.  All summed up, and rating it on the stock set up, I'll give the enduro 650b 4 stars.


Product Specialized Enduro Comp 650b Bike
Model Year 2015
Riding Type Enduro / All-Mountain
Rider Unisex
Sizes and Geometry
S, M, L View Geometry
Size S M L
Top Tube Length 546mm 585mm 610mm
Head Tube Angle 65.5° 65.5° 65.5°
Head Tube Length 110mm 120mm 130mm
Seat Tube Angle 74.7° 74.6° 74.5°
Seat Tube Length 393mm 425mm 463mm
Bottom Bracket Height 352mm 352mm 352mm
Chainstay Length 422mm 422mm 422mm
Wheelbase 1121mm 1160mm 1188mm
Standover 766mm 772mm 780mm
Reach 386mm 421mm 443mm
Stack 584mm 594mm 603mm
Wheel Size 27.5" (650b)
Frame Material Aluminum
Frame Material Details M5 Aluminum, Internal Command Post IR Routing
Rear Travel 165mm
Rear Shock FOX Float CTD Evolution with AUTOSAG, Climb, Trail, Descend Settings and Rebound Adjust, 216x64mm
Fork RockShox Pike RC 650b, Solo Air Spring, Tapered Alloy Steerer, with Compression, Rebound Adjust, 15mm Thru-Axle
Fork Travel 160mm
Head Tube Diameter Tapered
Headset 1-1/8" and 1-1/2" Threadless, Campy Style Upper with 1-1/2" Lower, Cartridge Bearings
Handlebar Specialized All-Mountain, Low Rise, 7050 Alloy, 8° Backsweep, 6° Upsweep, 31.8mm, 750mm
Stem Specialized XC, 3D Forged Alloy, 4-Bolt, 6° Rise
Grips Specialized Sip Grip, Light Lock-On, Half-Waffle
Brakes Shimano Deore BR-M615, Hydraulic Disc, Ice Tech Pads
Brake Levers Shimano Deore BL-M615, Hydraulic Lever
Drivetrain 1x
Shifters SRAM X7, 10-Speed, with MatchMaker Clamp
Front Derailleur N/A
Rear Derailleur SRAM X9 Type 2, 10-Speed, Mid Cage
Chainguide Top
Cranks SRAM X1 1000
Chainrings X SYNC
Bottom Bracket SRAM, PF30, OS Press-In Bearings, Sealed Cartridge
Pedals Resin Test Ride, with Toe Clips, CEN Standard
Chain SRAM PC 1031, 10-Speed, with PowerLink, Nickel Finish
Cassette SRAM PG 1030, 10-Speed, 11-36 Tooth
Rims Roval Fattie 650b, Alloy Disc, 29mm Inner Width, 24/28 Hole
Hubs Specialized Hi Lo Disc, Sealed Cartridge Bearings, 15mm Thru-Axle, 24 Hole Front // Specialized Hi Lo Disc, 4 Sealed Cartridge Bearings, 12mm Thru-Axle, 28 Hole Rear
Spokes DT Swiss Industry, Stainless
Tires Specialized Butcher Control, 60TPI, 2Bliss Ready, Folding Bead, 27.5" x 2.3" Front // Specialized Slaughter Control, 60TPI, 2Bliss Ready, Folding Bead, 27.5" x 2.3" Rear
Saddle Body Geometry Henge Comp, Hollow Cr-Mo Rails, 143mm
Seatpost Specialized Alloy, Single Bolt
Seatpost Diameter 30.9mm
Seatpost Clamp Specialized 7050 Alloy, Single Bolt, 34.9mm
Rear Dropout / Hub Dimensions 142mm x 12mm
Max. Tire Size
Bottle Cage Mounts Yes
Colors Project Clean Gloss Cyan, Gloss Dirty White/Black/Red, Gloss Charcoal/White/Cyan
Warranty Lifetime Frame, 5 Years Suspension Attachment Points and Related Equipment (Pivot Points, Bushings, Chainstays, Seat Stays, Shock Links, Fasteners)
Weight N/A
Price $3,600
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