FIRST IMPRESSIONS
2020 Rocky Mountain Slayer 70
First introduced to the Rocky Mountain lineup in 2001, the Slayer has morphed over the years into one of Rocky's burliest platforms. As downhill bikes become specialized race weapons, bikes like the Slayer are attracting riders looking for an aggressive, big mountain bike that can smash bike park laps, and still be pedaled to, from, up, and down local trails.
The 2020 Rocky Mountain Slayer was launched in August 2019 and comes in both 29 and 27.5" wheel options. The front triangle can be had in carbon or aluminum while the back end is aluminum on all versions. All Slayers are spec'd with coil shocks, proper forks, beefy tires, 4-piston brakes and 203 mm rotors. Travel-wise the 29ers are 170mm front and rear, while the 27.5" bikes come with 180 mm at both ends. The 29er comes in Medium, Large and XL, while the 27.5" version is available in Small, Medium, Large and XL.
Key frame features
- The RIDE-4 adjustment system allows riders to quickly fine tune their geometry with a pair of Allen keys.
- Size Specific Tune ensures that riders of all sizes get the appropriate rear shock tune.
- Tuned kinematics for better small bump compliance, increased mid-stroke sensitivity, and increased end stroke progression.
- Updated geometry, including longer reach, steeper seat tube angle, and slacker headtube angle.
- Carbon fiber front triangles use tube in tube cable management in order to easily route the shift and seatpost housing, and brake hose through the front triangle.
- Alloy front triangles feature large headtube ports and internal foam tubes to keep shift housing and rear brake hose quiet and easy to manage.
- Revised chainstay, shuttle guard, and downtube protectors all included.
- Integrated “Spirit Guide” chainguide.
- All sizes fit a water bottle in the front triangle.
- 2.6" tire clearance.
Rocky Mountain Slayer Geometry
Geometry on the Slayer is complicated because there are two wheel sizes, four different frame sizes, each with 4 geometry positions. The RIDE-4 setup guide has good charts of all the numbers you'd want. But the quick Coleman's notes are:
- Head angle: 63.8° to 64.8° adjustable with RIDE-4.
- Chainstay: 442 mm on the 29er and 430 mm on the 27.5 inch version.
- Wheelbase 27.5": 1177 mm (S) - 1273 mm (XL).
- Wheelbase 29": 1215 mm (M) - 1286 mm (XL).
It's a bike that has opened up some new possibilities for me, I have a lot of fun when I ride it and can't help but feel a bit nostalgic, too. – Thomas Vanderham
The Slayer comes in four build variants and two different frames - Carbon and Alloy. There are 30, 50, 70 and 90 build kits, with the 90 being the fanciest. I'm going to be testing Carbon Slayer 70, which is one step down from the top tier Carbon 90 and retails for $7,699 CDN. There are a ton of variations of the new Slayer, with a well thought out build at almost every level.
Rocky Mountain Slayer Carbon 70 Test Build Details
Fork | RockShox Lyrik Ultimate |
Shock | RockShox Super Deluxe Coil Ultimate RCT |
Brakes | Shimano XT Trail 4 Piston 203 mm front and rear |
Shifter and Derailleur | Shifter and Derailleur: Shimano XT |
Crankset | Race Face Turbine Cinch 29: 32T / 27.5: 34T |
Chainguide | Rocky Mountain Spirit Guide + OneUp |
Front Wheel | Race Face AR 30 rim on Rocky Mountain hub |
Rear Wheel | Race Face AR 30 on DT Swiss 370 |
Front Tire | Maxxis Minion DHF WT Double Down Maxx Grip 2.5" |
Rear Tire | Maxxis Aggressor WT Double Down 2.5" |
Stem | Stem: Rocky Mountain 35 AM |
Handlebar | Race Face Atlas 820mm |
Seatpost | OneUp Dropper Post |
Saddle | WTB Volt Race 142 |
I have to commend Rocky on the workhorse build kit. It's not overly flashy, and it's not light, but I think each component offers good performance at a reasonable price. All the small details that many manufacturers miss are considered and well executed. For most review bikes I'll switch tires, replace the brake pads, toss on a bigger front rotor, maybe a saddle, often a handlebar, maybe change the stem and almost always change the grips. This is one of the few bikes I've tested where I haven't changed a single component. The Slayer comes with good Maxxis Double Down tires sporting a MaxxGrip front and harder compound rear; awesome! There are metallic brake pads (THANK.YOU.ROCKY!). There are 203 mm rotors front and rear. The handlebar is a wide 820 mm Race Face Atlas unit that I trimmed down to 800 mm. Even the Rocky Mountain grips work well for me. This speaks volumes. It's clear the folks spec'ing the Slayer ride this bike like it's meant to be ridden, and they care more about how the bike rides than how it appears in a spec sheet or how heavy it feels on the sales floor.
I asked the Rocky folks about how and why they developed the Slayer into what it is today. I particularly liked Thomas Vanderham's comments about the new Slayer:
"The Slayer has long been my favourite Rocky Mountain platform. I feel that it's the bike we can push the limits with a bit, and that was no different with this version. When we started to discuss the evolution of the Slayer, I got pretty fired up when the goal was set to make a 170/180mm travel bike that was a really capable descender but could still be climbed up the mountain. To me it is the evolution of the freeride bike that I grew up riding on the Shore, we used to push our 50 pound DH bikes up the mountain with nearly the same amount of travel. Modern design, materials and geometry have made it possible to make a bike that is more capable and confidence inspiring on the way down at 60% of the weight... very cool. It's a bike that has opened up some new possibilities for me, I have a lot of fun when I ride it and can't help but feel a bit nostalgic, too."
That's a quick look at the 2020 Rocky Mountain Slayer C70 then. To say this is merely a first look is a bit misleading. I've been out riding the Slayer for well over a month now. But I'll save my ride impressions for an upcoming article, filled with some gorgeous photos from Deniz. Besides, I can't spill the beans just yet. Like at any good Scotch tasting ... more research is required!
Comments
Vik Banerjee
4 years, 3 months ago
A complete bike you don't change any parts on is a beautiful thing. Nice work RM. I've lucked out on a couple bikes like that lately and they've changed my usual aversion to complete bikes.
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DanL
4 years, 3 months ago
I completely agree. It's a battle to find a new bike that I wouldn't want to strip things off and swap out instead of pay and ride.
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Tehllama42
4 years, 3 months ago
Yeah, I'd be in the same boat, which is impressive. Really one of those things that is underrated in terms of actual brand cachet - to the point where I'm confused anybody would ask me to spend $8k on a bicycle that comes with parts I consider completely not up to the task, why am I supposed to believe the non-recurring engineering elsewhere on that vehicle is worth that expenditure?
Also, the degree of future-proofing built in through the adjustable Ride-N stuff is great - I'd actually love to see a reappearance of the Ride9 system in some of the other trail bike segments.
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DanL
4 years, 3 months ago
It’s also of note to see how much just the frame kit is compared to a full, good build that one can ride straight out with warranties fluttering in the wind
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DMVancouver
4 years, 3 months ago
The only weak point on the spec is the DT 370 hubs. At that price, you should get 350s. If they need to cut costs somewhere, the rear hub is not the place to do it. Give me an SLX derailleur if that's what it takes...
Otherwise, the build looks well put-together.
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Velocipedestrian
4 years, 3 months ago
SLX derailleur / better hub is a perfect swap, shame about the showroom floor factor.
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Jenkins5
4 years, 3 months ago
I agree about the hub. The 370 engagement is pretty poor.... The only other place I'd like to see some slight improvement is the AR rims (should be the welded and stronger ARC rims). I haven't had good luck with the AR rims in the past but that's just me...Other than those, the spec is pretty solid for sure!
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Tim Coleman
4 years, 3 months ago
Fingers crossed, but so far the AR rims have been ok for me, and I haven't been kind to the back wheel. Now that I think about it I've had better luck with these AR rims, than the ARC30 rims that were on the V10 last year.
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DMVancouver
4 years, 3 months ago
I’m less fussed about the rims. In my experience, most alloy rims are pretty similar, in that I kill them sooner or later. Having a good 32 hole non-proprietary hub that is worth building the next rim onto is far more important to me.
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prairiedirt
4 years, 3 months ago
I actually bought the take-off wheelset from someone's 2019 Slayer for my winter/ratbike. The DT 370 has held up through a salty Alberta winter and somewhat sloppy spring before routine maintenance. I can't say that about my experiences with Novatec or Sun Ringle.
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Reaper
4 years, 3 months ago
Amen to that. A cousin bought a Slayer 50 29" recently because A) it's a Rocky Mountain Slayer. B) because she wouldn't have to change a thing (except for the grips because small hands).
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Mammal
4 years, 3 months ago
Although I'm pretty familiar with the bike, I'm looking forward to your long-term, Tim. We hop-scotched a bit near the beginning of the Seymour climb trail the other day, and I found myself thinking "Is that Tim? No, probly not on a Slayer". I'm too used to seeing you on various Norcos.
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Tim Coleman
4 years, 3 months ago
You should have said hi! I've been out a lot on the Slayer, and should have a ride impressions article shortly.
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Mammal
4 years, 3 months ago
I know, I seriously convinced myself it wasn't you. I was on the Ripmo AF, if you remember, and sprang up out of your way when I stopped for a drink at the beginning of the climb.
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Tim Coleman
4 years, 3 months ago
Oh yeah, neat! Hopefully I'll see you out on the trails again soon.
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Jason Fischer
4 years, 3 months ago
Literally walking out the door to go pick up my A50 29 right now. I can't wait to hit the trails this afternoon!
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Tim Coleman
4 years, 3 months ago
So how was the bike?!
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Jason Fischer
4 years, 3 months ago
Amazing! I'm coming from a 2016 Canfield Riot, so going from a bike that was a touch small (I'm 6'4) with SUPER short chainstays to something that feels like it actually fits is unbelievable. It's definitely a different style of bike than the Riot, but I'm already riding faster over stuff I was picking my way down last year. I finally understand what people talk about when they talk about plowing through stuff.
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[user profile deleted]
4 years, 3 months ago
This comment has been removed.
mike
4 years, 3 months ago
Killer bike , but as a machinist. I look at the shock linkage and cringe!!!!$7600 with a poorly profiled part. Rocky was once known for precise epic quality. Work like that screams all about the $$$.
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Mammal
4 years, 3 months ago
I definitely see what you mean. But to avoid any chance of that making it's way into production, they'd likely need to procure from a much more costly supplier, and 99.7% of riders won't give a rat's ass about that profile transition. Probably a good cost/benefit decision by Rocky.
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Tehllama42
4 years, 3 months ago
Forgings are cheaper, and running a ball end mill across every surface isn't necessarily worth the cost if it's effective... odds are the paint finish is just making one part at the thin end of within spec look particularly bad, and functionally zero difference.
I suspect if you bought one that looks just like this, RM would replace it (and proceed to slap that onto a bike for internal or demo fleet use)
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Dan
4 years, 3 months ago
Can you explain a little further what you're seeing that my untrained eyes can't? :)
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[user profile deleted]
4 years, 3 months ago
This comment has been removed.
mike
4 years, 3 months ago
https://nsmb.com/media/images/DSC07052_denizmerdano_timmigrant_slayer_denizme.original.jpg
It,s the rough looking finish . The tool either dwell , or the part rattled. I have scrapped parts for less . I see that and start to question other stuff. Like was the part not properly fixtured. That can lead to twisted alignment points for bearing and such.It,s a habit from having to inspect parts.
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[user profile deleted]
4 years, 3 months ago
This comment has been removed.
UFO
4 years, 3 months ago
These are the linkage plates that Wade's dreams brought though!!
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Tim Coleman
4 years, 3 months ago
I see what you're saying now. Keen eye!
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mike
4 years, 3 months ago
OCD/ADHD and working to 0.0005" tolerances does not help LOL.
Tehllama42
4 years, 3 months ago
Yeah... but having done aerospace and bicycle machining in the same shop, the difference in what's needed are pretty drastic. Feels bad to say, but bicycles are a completely different thing in terms of the machining precision required, and while beautiful cosmetics are nice, they're ot actually that critical.
It's probably the 'wrong' approach, but as an engineer I'm no less happy with something that has the closer to nominal forging as the starting billet instead of just throwing money at tool life and making more chips just to achieve that, I have actually more respect for the process that will turn out ugly parts 1% of the time.
Dan
4 years, 3 months ago
Thanks for helping us out! One more question: is 'tool dwell' the phenomenon of the machining bit uh 'staying in place' when it should keep moving?
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mike
4 years, 3 months ago
Yes pretty much.
Morgan Heater
4 years, 3 months ago
The metal around the drop-out really does look skinny!
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