Fitting new gears, chain, cables and mechs this weekend – any tips?

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  • Fitting new gears, chain, cables and mechs this weekend – any tips?
  • marvincooper
    Member

    Bought a load of cheap bits to get my old bike back up and running. Never set things up from scratch before. Any tips? What order would you do things in for instance…. assuming a beverage is sorted already 🙂

    Premier Icon somouk
    Subscriber

    I’d fit the main parts to the frame and in the right places then get the chain on then run the cables.

    Finally follow the numerous online guides for setting the gears up 🙂

    Premier Icon Pik n Mix
    Subscriber

    The park guides on their website are brilliant for when you have to set everything up.

    porlus
    Member

    Built two bikes myself now. Youtube was a massive help.
    rear mech install minus the cable. Set high and low limits by moving the mech across the cassette by hand. Make sure shifter is in high gear and runs smooth in high. Install the cable, and in theory it should work first time.

    Premier Icon Northwind
    Subscriber

    Everything will be fine. Except the front mech, it’ll be a total bollocks.

    porlus
    Member

    Lol this is true. Second bike was 1×9 hehe. First was 11 speed campag. Grrrrrrr

    marvincooper
    Member

    Cheers chaps 🙂

    Premier Icon p7rich
    Subscriber

    Take your time and be prepared to walk away for at least 30 min’s if you get near to either blood, sweat or tears.

    porlus
    Member

    Then marvel how the second attempt goes perfectly

    Premier Icon tomhoward
    Subscriber

    Make sure any sensitive ears are away from the inevitable swearing….

    porlus
    Member

    Lol good advice. My lass got a right ear bashing when she entered the same room as the bike build.

    Premier Icon mattjg
    Subscriber

    Tight enough is tight enough.

    paulos
    Member

    Good quality cable cutters, and tea……..

    marvincooper
    Member

    Ah yes I knew there was something I meant to buy. Off to the tool shop tomorrow. I was there today and forgot all about needing cutters!

    paulos
    Member

    dont forget the tea

    Premier Icon zbonty
    Subscriber

    Bike shop (shimano/park) are best-buy quality, buy once!

    No need to cut any cables until everything is set up/indexed tbh. Cutting the cables and crimping the end caps can be the icing on a hopefully not too sweaty cake.

    +1 Porlus and Northwind

    dantsw13
    Member

    Have a spare gear cable!!!!

    +1 for the ParkTools video guides.

    Use some loctite.

    After fitting the cable, give the bare inner cable run a few hard tugs, to make sure all the ferrules are on tight, and stop the tensioning going after a ride or so.

    porlus
    Member

    Best part though. First ride out and gears and brakes work perfect. Such a smug feeling.

    Premier Icon mattjg
    Subscriber

    Best part though. First ride out and gears and brakes work perfect. Such a smug feeling.

    Nah it’s too early to say.

    Coffee and a bacon butty.
    Favorite podcast or some cycling on the telly.
    A clean bike.
    Clean parts.
    Coffee.
    Tools for the job.
    No kids.
    Grease.
    GT85
    Youtube for referencing.
    and coffee.

    It’s a doddle. And front mechs are easy BTW.

    bigyinn
    Member

    It’s an absolute joy to setup a drivetrain from scratch. Love it.

    marvincooper
    Member

    Was gonna make a start tonight but the usual Friday evening lounging with beer and laptop have ensued instead. Feeling some trepidation about the front mech but looking forward to the smugness…

    Premier Icon Scapegoat
    Subscriber

    Right. Front mech. They can be a pain, but not if you go about it logically and calmly.
    1. Wedge a 5mm hex key in the mech so it’s in “high” position. You can use the cable pull clamp to pull it apart and insert the allen key like this:

    Put the band round the seat tube and screw it up to finger tight, then undo a half turn so it can be adjusted but won’t slip straight off again.

    Align the cage of the mech so that it is about 3mm clear of the outer ring or bash, whichever you have.

    Once you have established teh correct height, look down from above and make sure the inside edge of the cage is exactly parallel with the chainrings.

    Aligned in both planes now, you can do up the clamp band and remove the allen key.

    Release the shifter so it’s under no tension, (ie indexed to the inner ring) and add the cable. Clamp it to the front mech with no slack to start with. (make sure the shifter barrel adjusters are wound in all the way, then a turn or two back out to give you some leeway) . . Once the chain is on work out which limit screw affects the cage in “low” and look from above as you screw it in or out. Put the chain on largest sprocket and teh inner chainring and adjust the limit screw to give 1-1.5 mm of clearance between the inside of the inner plate of the cage and the chain.

    Shift the chain to outer ring, and the smallest sprocket. Again, use the limit screw to wind the cage in or out so that there is 1-2mm clearance between the chain and the inside of the outer cage plate.

    If you have a triple, shift to the middle of the cassette and then shift between chainrings at the front using the shifter. You may need to fine tune by adding or lessening cable tension with the barrel adjuster, but you shouldn’t be far off with this formula.

    Premier Icon Northwind
    Subscriber

    Scapegoat – Member

    Aligned in both planes now, you can do up the clamp band

    IT MOVED! FFFFFFUUUUUUUUUUU

    Premier Icon Scapegoat
    Subscriber

    Northwind, I occasionally use a small boy to hold things in place…… 😀

Viewing 25 posts - 1 through 25 (of 25 total)

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