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Go Air or stay Coil

Udi

RM Chief Ornithologist
Mar 14, 2005
4,915
1,200
I'd say that's a typo
I could be wrong but I think there is a big mistake somewhere in that claim.
So apparently lizard ppl can't read english. Dude summed the damper body weight with a spring weight SAVINGS and said it weights 380g (285g + 101.2g).
Come on, you should trust your intuition and materials knowledge over four-legged snakes. :D

PS. tacubaya says VALT 400x2.5" spring is 316g, so with 285g damper the total is 601g.
 
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troy

Turbo Monkey
Dec 3, 2008
1,012
743
How about Avalnache mod for an old Vanilla R shock + some lightweight spring?
 

Jm_

sled dog's bollocks
Jan 14, 2002
18,999
9,660
AK
How about Avalnache mod for an old Vanilla R shock + some lightweight spring?
The concept is flawed. What are you going to do. Just ride bike paths? Get a big enough/reliable enough shock for what you are going to do. Why get a old non-res vanilla R when to can get a proper reservoir shock? If you are doing just XC, get a tuned XC shock.
 

troy

Turbo Monkey
Dec 3, 2008
1,012
743
@Jm_ are you saying that vanilla R was not a reliable shock? What is a "proper reservoir shock", and what is the advantage in having a reservoir shock over an Avy tunned shock?
 

Udi

RM Chief Ornithologist
Mar 14, 2005
4,915
1,200
@Jm_ are you saying that vanilla R was not a reliable shock? What is a "proper reservoir shock", and what is the advantage in having a reservoir shock over an Avy tunned shock?
Are you talking about the Vanilla R or the Van R?
The names are a bit confusing unfortunately.

The Vanilla R is the light one you mentioned, it's really old (1997-2004), and it lacks the secondary compression damping circuit which means:
  • no external compression adjustment
  • all compression damping has to come from main piston
  • higher chamber pressure required to prevent cavitation
  • greater breakaway force, higher potential of seal failure, etc
The Van R is a newer full piggyback shock and not much lighter than a small shaft RC4, with inferior performance, so at that point you may as well just run an RC4. I would much rather lighten an RC4 by removing surplus parts (eg. bottom out adjuster/assembly) than trying to improve the low-end R damper units.

If you read the pinkbike comments there's a fair few unhappy IL customers, so I'd wait and see with regards to durability on the new shock. The good news is that it fits standard 1.43" springs, and as I said earlier, *good* Ti springs (i.e. not rubbish from ti-springs.com) are much lighter than "lightweight steel" springs + you can still find them around if you know what to look for. For example, a DSP 400x2.25 Ti weighs 228g, will reliably cover a 2.5 or even 2.75 stroke, and with a shock like the IL coil you could have a 513g total. Will it be reliable under regular DH-style use? I personally doubt it from this shock - but if you wanted to take the gamble, 500-520g is your realistic minimum value (and that's not possible with any of these off-shelf "lightweight" steel spring options). If you use the steel spring, 600g is realistic.

I'm currently running a kash RC4 in my trailbike with aforementioned spring, so 228g + 400g for the damper = 628g. Compared to 513g, it's a minor weight difference for a sacrifice-free damper.

I think Jm_ makes a valid point really - if your shock does not provide the damper performance you want (Vanilla, Van), and blows up or has other reliability/consistency issues (potentially CC, wait and see), then it's pretty pointless switching to a coil. You know I'm all for optimisation but I think it's important to be realistic, that's why our "380g" shock weighs 600g. :D
 

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