Shaft clamps

Discussion in 'The Shop' started by Happymtb.fr, May 14, 2018.

  1. Happymtb.fr

    Happymtb.fr Monkey

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    I am looking for shaft clamps to be able to service my shocks and forks at home. Buying the clamps from Fox and RS would be quite expensive and I hope that there is the possibility to buy some cleverly done clamps that would fit most of Fox and RS shocks.

    The BBI clamps are out of stock and lack the 9mm for Fox shocks...

    I have a park tool av-5 but I am not sure I can trust it since it is anodized and doesn't go around as much as some other clamps do.

    What do you use?
     

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  2. rideit

    rideit Bob the Builder

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    Heh. Heh.
    You said 'shaft'.
    Heh.
     
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  3. johnbryanpeters

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    Perhaps you are looking for a cock ring?
     
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  4. KenW449

    KenW449 something stupid

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    Air shocks and forks already come with one. He needs to be able to take them apart to get to it.
     
  5. Happymtb.fr

    Happymtb.fr Monkey

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    e31.jpg
     
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  6. Nick

    Nick My name is Nick

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    Birzmam makes a vice mounted axle block with a 9mm.
     
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  7. HardtailHack

    HardtailHack used an iron once

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    Once upon a time people were helpful on this forum.
     
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  8. canadmos

    canadmos Mater Slayer

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    Drill some holes in a block of wood and split it in half?
     
  9. jonKranked

    jonKranked Press Button, Receive Stupid

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    tried it, it only sorta kinda works.
     
  10. jonKranked

    jonKranked Press Button, Receive Stupid

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    avalanche makes one, but i think it's specific to Avy shaft diameters.
     
  11. jonKranked

    jonKranked Press Button, Receive Stupid

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    link? i can't find it on their website
     
  12. Happymtb.fr

    Happymtb.fr Monkey

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    I have done that before and find it to work fine on larger diameter (above 20mm or so) but much less on smaller diameter. I might give it a try with a harder wood... I am aiming at 9mm for the moment but would also like to have an 1/2" clamp which is a bit more difficult to produce when living in metric-country.

    Here is the Birzman: http://www.birzman.com/products_2.php?uID=2&cID=5&Key=131
    looks ok, price is really good but I cannot find it in stock where I usually shop...

    An option would be to ask shockcraft to make one https://www.instagram.com/p/BHlBHOHjtNh/ no idea on the price yet.
     
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  13. jonKranked

    jonKranked Press Button, Receive Stupid

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    have you actually tried the park av5 you have?
     
  14. Happymtb.fr

    Happymtb.fr Monkey

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    No...:D
    I am not certain that it will not scratch or compress the shaft since it is not surrounding it like more purpose build clamps. It would be a pity if it happened. Has somebody here experience with it?
     
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  15. Nick

    Nick My name is Nick

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    What are the common shaft diameters that would make up a good home-shop tool? I know a machinist who might knock out some vice blocks from scrap for a few bucks.
     
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  16. jonKranked

    jonKranked Press Button, Receive Stupid

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  17. Happymtb.fr

    Happymtb.fr Monkey

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    Fox Float and X2 have 9mm shaft these days. Maybe the list from bbi was valid a few years back?
     
  18. Nick

    Nick My name is Nick

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    behind you, don't wait up.
    let's ask a different way; what diameters would be useful in a FOX focused vice block?
     
  19. jonKranked

    jonKranked Press Button, Receive Stupid

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    it's BBI. it's intended to be a true universal set for bike shops.
     
  20. jonKranked

    jonKranked Press Button, Receive Stupid

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    8mm: Fox, Manitou and Marzocchi forks (damper and piston shafts)
    9mm: RockShox Ario/Bar/Monarch air-shock damper shafts
    10mm: Fox and Marzocchi forks (damper and piston shafts)

    12.7mm: RockShox Vivid rear shock damper shaft
    15.0mm: Marzocchi SFA/ATA air-piston shafts
    15.9mm: Fox TALAS IFP Shaft
    16.7mm: Fox FIT 32 RL & RLC damper-cartridge body
    17.5mm: Fox damper cylinders and TALAS Lower Air Shaft
    17.5mm: Fox 36/40 FIT RC2 damper cylinders
    18.7mm: Fox Gen 3 O/B RL damper cylinder

    19.5mm: Fox dampers, base valve body (R, RL, RLC, RLT)
    21.0mm: Shimano 15mm thru-axle front hub
    22.2mm: Manitou Cartridge Intrinsic & TPC Cartridge damper cylinder
    23.8mm: Shimano Saint and XTR front hub thru-axle
    23.8mm: Fox 36 O/B R damper base-valve body
    25.4mm: Fox X damper (base valve body) & some rear shock damper cylinders
    25.4mm: Fox 32 FIT Terralogic damper cylinder

    25.4mm: Marzocchi Doppio air-spring cylinder
    28.6mm: Fox 36/40 FIT R and 36/40 FIT RC2 damper base-valve body

    That's everyhting Fox, which cuts it down to 11 from 15.

    8, 9, 19, 15.9, 16.7, 17.5, 18.7, 19.5, 23.8, 25.4, 28.6
     
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  21. johnbryanpeters

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    The shaft's likely hardened... I'd be inclined to drill out a block of aluminum to the shaft diameter, cut it in half, and clamp away.
     
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  22. Happymtb.fr

    Happymtb.fr Monkey

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    You can add 12.7mm (1/2") to the list if you need to fully service a thin shaft DHX RC4
     
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  23. Happymtb.fr

    Happymtb.fr Monkey

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    I asked Dougal at Shockcraft and he can make a clamp block for 150NZD with the following sizes 8, 9, 3/8", 10, 11, 12, 1/2". He will make a batch somewhere under his NZ winter so contact him if you are interested and before it's too late.
    sales@shockcraft.co.nz
     
  24. 4130biker

    4130biker PM me about Tantrum Cycles!

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    I made my tubing blocks for frame building out of maple. It works quite well on the larger diameters, but you’d just have to try and see on the smaller. It grips really well and the deformation of the wood is almost non-existent. Mine are about 3” wide where they contact the tubes, so that helps avoid slippage and they’re very gentle on the shafts.
     
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  25. Happymtb.fr

    Happymtb.fr Monkey

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    The clamp will be 8, 9, 3/8", 10, 12, 1/2" and 43mm (for servicing a X2)
    Price is 150nzd before shipping.
    Get in touch with Dougal if you want one
     
  26. 6thElement

    6thElement Turbo Monkey

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    I use an AV5 supplemented with a piece of old tube to wrap around whatever I'm clamping if I feel it's necessary.

    Used just the other day changing out a 5 year old cartridge in a KS Lev that finally started to sag a few mm.