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Which 29'er frame suitable for coil rear shock?

2122 Views 19 Replies 16 Participants Last post by detsortehul, Feb 10, 2022

detsortehul

Discussion Starter · Jan 19, 2022

Which 29er frames have a progressive rear leverage curve, suitable for a coil shock, and approx. 140 mm travel?

I have been waiting and waiting for the SC Hightower V3 to be released and hopefully fixing the V2's inability to mount a rear coil: It has too little space in the shock tunnel.

Who gets my money? :-D

1 - 20 of 20 Posts

Crossmaxx

· #2 · Jan 19, 2022

Forbidden Druid? Ibis Ripmo v2?

Reactions: 1

MyDadSucks

· #3 · Jan 19, 2022

Banshee Prime v3.

Reactions: 2

minimusprime

· #4 · Jan 19, 2022

Frames without a yoke, or at least, not having a long one, and ideally a linear-progressive leverage rate curve that is in the realm of ~30%. I have some opinions of particular antisquat values that I like paired with coils, but overall, the general gist is a 30% progressivity to the suspension and minimal side loading of the shock.

Reactions: 2

Mudguard

· #5 · Jan 20, 2022

minimusprime said:
Frames without a yoke, or at least, not having a long one, and ideally a linear-progressive leverage rate curve that is in the realm of ~30%. I have some opinions of particular antisquat values that I like paired with coils, but overall, the general gist is a 30% progressivity to the suspension and minimal side loading of the shock.

Is there much evidence of yokes breaking coil shocks? I really only recall the Levo munching them. But then the Kenevo comes with coil. The Stumpy Evo and previous gen Enduros often had coil option.

Reactions: 1

springs

· #6 · Jan 20, 2022

Mudguard said:
Is there much evidence of yokes breaking coil shocks? I really only recall the Levo munching them. But then the Kenevo comes with coil. The Stumpy Evo and previous gen Enduros often had coil option.

Just google that mate. Each of those bikes you mention have many cases of snapped shafts on coil shocks.

Reactions: 1

Mudguard

· #7 · Jan 20, 2022

springs said:
Just google that mate. Each of those bikes you mention have many cases of snapped shafts on coil shocks.

Google is awkward like that. I keep an eye on the enduro and stumpy thread on here and it's not exactly littered with broken shocks. I suspect it's as much do with how many are sold as well.
As to the OP I'd be looking at bikes that actually offer a coil option. That will at least give a decent idea if the frame is suitable provided it doesn't change depending on which shock is offered.

Reactions: 1

milehi

· #8 · Jan 20, 2022

Gurrilla Gravity Smash

Reactions: 4

jeremy3220

· #9 · Jan 20, 2022

detsortehul said:
Which 29er frames have a progressive rear leverage curve, suitable for a coil shock, and approx. 140 mm travel?

I have been waiting and waiting for the SC Hightower V3 to be released and hopefully fixing the V2's inability to mount a rear coil: It has too little space in the shock tunnel.

Who gets my money? :-D

SC releases on 3 year cycles. There will almost certainly be an update this year. Not saying you should wait but it wasn't expected to be released before this year.

Reactions: 1

Monty219

· #10 · Jan 20, 2022

Mudguard said:
Is there much evidence of yokes breaking coil shocks? I really only recall the Levo munching them. But then the Kenevo comes with coil. The Stumpy Evo and previous gen Enduros often had coil option.

Fox does not recommend coil on specializeds with yokes. RS calls it okay and they have wider diameter shafts. Thats what the JRA people say anyway.

Reactions: 1

Mudguard

· #11 · Jan 20, 2022 (Edited)

Monty219 said:
Fox does not recommend coil on specializeds with yokes. RS calls it okay and they have wider diameter shafts. Thats what the JRA people say anyway.

There was a thread on here with a broken one. But I've never looked up to see if it's specifically written anywhere. As far as I can recall the shock manufacturers say to check with the frame manufacturers. I'd have to look up a stumpy to see if Specialized state not to use coils.

I stand corrected. Someone else has linked some info. Which is interesting is there have been bikes with struts for quite some time (the Enduro at least to 2013) which exceed their stroke and strut recommendations.

www.ridefox.com

Information on

www.ridefox.com

Reactions: 1

detsortehul

Discussion Starter · #12 · Jan 21, 2022

Thank you for all the great tips.
I also spotted the Transition Spur. With its ~40% progression it should work well with a coil.
And threaded BB is also a plus for me.
But only 120 mm travel (I come from 130 on a 27.5). This hits directly into another question for which I cannot decide: 120 or 140mm travel. I mostly ride trails on which 120 mm is a great match, but I have most fun on the 20% time when I ride rougher trails where 120mm feels too little.

ocnLogan

· #13 · Jan 21, 2022

detsortehul said:
Thank you for all the great tips.
I also spotted the Transition Spur. With its ~40% progression it should work well with a coil.
And threaded BB is also a plus for me.
But only 120 mm travel (I come from 130 on a 27.5). This hits directly into another question for which I cannot decide: 120 or 140mm travel. I mostly ride trails on which 120 mm is a great match, but I have most fun on the 20% time when I ride rougher trails where 120mm feels too little.

Do they make 45mm stroke coils? I can't think of any offhand, but I admit to not really shopping coils yet.

MyDadSucks said:
Banshee Prime v3.

Exactly this.

135mm rear travel, threaded BB, great pedaling platform, progressive.

And it looks like this

.

Bicycle Wheel Bicycles--Equipment and supplies Tire Bicycle wheel rim

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Reactions: 3

Curveball

· #14 · Jan 21, 2022

Here you go:

The Smash – Guerrilla Gravity (ridegg.com)

Reactions: 1

ungod

· #15 · Jan 22, 2022

detsortehul said:
Thank you for all the great tips.
I also spotted the Transition Spur. With its ~40% progression it should work well with a coil.
And threaded BB is also a plus for me.
But only 120 mm travel (I come from 130 on a 27.5). This hits directly into another question for which I cannot decide: 120 or 140mm travel. I mostly ride trails on which 120 mm is a great match, but I have most fun on the 20% time when I ride rougher trails where 120mm feels too little.

I have a Tallboy 4 and bought a Cascade link for it, and they had this to say about running a coil on it. I have no idea, but I suspect it runs true for many of the bikes you're looking at:

"""We get a lot of questions about coil shocks and Santa Cruz bikes that are listed as not compatible with a coil. Here’s out take on it with the Tallboy: Yes, coil shocks will fit with this link, as they do with the stock link. For most riders, a coil shock is not the way to go on the Tallboy. The size of impact that a coil spring can absorb decreases very quickly as the shock stroke is decreased. The Tallboy uses a relatively short shock, so this requires over-springing or running excessive damping, both of which are generally detrimental to how the suspension behaves. As such, our recommendation is to stick with air"""

https://m.pinkbike.com/news/cascade-components-announces-v4-tallboy-link.html

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Reactions: 1

TraxFactory

· #16 · Jan 22, 2022

EVIL Offering - 140 rear, works extremely well with coil. I am running an 11-6 and extremely impressed with this setup....Fun bike.

Reactions: 1

Jukka4130

· #17 · Jan 22, 2022

All models from Pole Bicycles.

Reactions: 1

TylerVernon

· #18 · Jan 22, 2022

Easy, Intense Primer. 140mm and comes with a coil. 26% progression after sag iirc.

Bicycle Wheel Tire Bicycles--Equipment and supplies Crankset

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Reactions: 1

yetiman71

· #19 · Jan 23, 2022

Bird AM9 and Aether 9 both work well with coil shocks. I have an AM9 running a custom tuned Bomber CR and it's a very capable bike with a 170mm fork up front, but the 130mm Aether 9 is maybe more in line with what you're looking for. Bird offers the frame with a range of coil shocks.

Reactions: 1

detsortehul

Discussion Starter · #20 · Feb 10, 2022

Thank you for all the tips!

I found a used Intense Primer 29er. Cannot wait to get it rolling

Intense Primer 29'' 2020

Reactions: 1

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