Rockshox reverb

kinioo
kinioo Posts: 776
edited June 2015 in MTB buying advice
Morning All,

I am thinking of getting a Rockshox reverb for my Anthem X2.

My frame is a large one and the current seat @ about 120-140mm above the frame - I mean this is the length of the seatpost exposed.

Found the reverb in different sizes / drops etc.

Which one should I look at ?

They specify something like this:

Length: 420 mm
Diameter: 34,9 mm
Adjusting range: 100 mm

I want to be able to drop the seat all the way down to the frame.

Should I look @ 120-140mm dropper post (adjusting range)??

Thanks,

Chris

Comments

  • Antm81
    Antm81 Posts: 1,406
    You won't be able to drop the seat that low, there's collars etc that will limit that. 100mm sounds best, and I expect you'll need 30.9 rather than 34.9 as most Giants are. Look at the giant dropper too, works well and I prefer that its cable not hydraulic
  • kinioo
    kinioo Posts: 776
    You won't be able to drop the seat that low, there's collars etc that will limit that. 100mm sounds best, and I expect you'll need 30.9 rather than 34.9 as most Giants are. Look at the giant dropper too, works well and I prefer that its cable not hydraulic

    Cheers Antm81,

    Yes, I know about the collar etc. but I want to drop it as low as possible so something like 120mm maybe ??

    Re: dia - it was just an example spec - I will need 30.9;

    Yeah, was looking at giant dropper post but haven't seen it in the flesh...

    Does it operate smoothly - going up/down ??

    C.
  • warpcow
    warpcow Posts: 1,448
    edited June 2015
    What is it, 120mm or 140mm? That's a big difference with regard to saddle height. A 125mm drop Reverd actually needs something like 195mm of exposed seatpost iirc (so a 100mm drop one needs 170mm), so you need to start measuring. There's earlier posts on here with a table of all the most common dropper posts and their measurements if you search.
  • NeXXus
    NeXXus Posts: 854
    You won't be able to drop the seat that low, there's collars etc that will limit that. 100mm sounds best, and I expect you'll need 30.9 rather than 34.9 as most Giants are. Look at the giant dropper too, works well and I prefer that its cable not hydraulic

    Cheers Antm81,

    Yes, I know about the collar etc. but I want to drop it as low as possible so something like 120mm maybe ??

    Re: dia - it was just an example spec - I will need 30.9;

    Yeah, was looking at giant dropper post but haven't seen it in the flesh...

    Does it operate smoothly - going up/down ??

    C.
    Giants own dropper is great (I have the Switch Contact SL) not as common as Rockshox nor it is hydraulic (cable) but it still does the job just fine
    And the people bowed and prayed, to the neon god they made.
  • JodyP
    JodyP Posts: 193
    Giants own dropper is great (I have the Switch Contact SL) not as common as Rockshox nor it is hydraulic (cable) but it still does the job just fine

    As long as its a MK2 Giant dropper. The MK1's seemed to suffer from water ingress causing the button on the piston to corrode and seize.
  • Antm81
    Antm81 Posts: 1,406
    Had no problem with either the Mk1 or mk2 giant dropper. There where issues with the mk1 caused by a hole near the saddle though, easily fixed with some tape or a puncture repair patch like I did.

    The mk2 looks far better though being all black plus the fact it can be internally routed too.
  • NeXXus
    NeXXus Posts: 854
    Giants own dropper is great (I have the Switch Contact SL) not as common as Rockshox nor it is hydraulic (cable) but it still does the job just fine

    As long as its a MK2 Giant dropper. The MK1's seemed to suffer from water ingress causing the button on the piston to corrode and seize.
    Not sure which it is,electrical tape strategically placed left no place for ingress anyway
    And the people bowed and prayed, to the neon god they made.
  • paul.skibum
    paul.skibum Posts: 4,068
    Table of lengths and measurements is in this thread - http://www.bikeradar.com/forums/viewtopic.php?f=20005&t=12971373

    Very helpful little table but puts your 120-140mm in a little bit of trouble as all the 100mm drops seem to need more which is where a proper measurement is needed and be sure your saddle is at a proper full extended pedal position not a compromise position you might use on trails to be able to get off the saddle for short sections. With a dropper you no longer need that compromise position, so put the seat up to give you a full pedal stroke.
    Closet jockey wheel pimp whore.
  • you need to measure from the seat rails to the top of the seat clamp.. that will give the best idea of what you can fit