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  • 1 X 9 chain drop FFS
  • m1kea
    Free Member

    Resurrected the old steel HT over the W/E and thought I’d have a go at this ere 1 X 9 malarky.

    I removed the granny and outer rings on the triple chainset and fitted a Gamut P20 dual BB mount jobbie.

    Commute in this morning confirmed very quickly that the lack of front mech and/or top retaining guide is a sure fire way to drop the chain at what seemed like every possible opportunity; – leaves on the road, clouds scudding by, you name it 🙁

    If I stay with 1 X 9, what’s going to be the best bet to keep the firkin chain on? I haven’t been able to locate anyone who has Gamut’s single boomerang BB mount wotsit in stock so should I try an e.13 mount or something like Hope’s chain guide?

    Cheers

    Posted 10 years ago
    Keva
    Free Member

    bash guard on the outside and N-Gear jump stop on the inside works perfectly well for me.

    http://n-gear.com/whatis.html

    this pic actually shows a 32t bash guard just after I’d changed to a 36t chain ring.. get the right size bash and it works a treat.

    Posted 10 years ago
    onandon
    Free Member

    You need an Unramped chainring.

    Posted 10 years ago
    mikewsmith
    Free Member

    for never losing a chain?
    e-13 guide ring and e-13 SRS worked flawlessly for me.
    Not the cheapest solution but works

    Posted 10 years ago
    m1kea
    Free Member

    Mike

    e-13’s unit like this? –

    I had kind of hoped the bottom roller of the Gamut might have kept some tension, but clearly not.

    Posted 10 years ago
    DaveyBoyWonder
    Free Member

    How many times will this question be asked. For 1×9/10/11 you NEED:
    – unramped chainring
    – some kind of guide (as a minimum a top guide, I prefer something like an MRP G2 with top and bottom guides)
    – the correct length chain

    This will work. Honest. Any form of p*ssing around with ramped middle chainrings and inadequate chainguides will just not work… (I’ve been there and done it – quickly got madly annoyed with it and spent a bit of cash and did it properly).

    Posted 10 years ago
    mikewsmith
    Free Member

    this is the new one

    Posted 10 years ago
    munrobiker
    Free Member

    Is the guide you’re using not meant for double chainring use? It won’t work at all for 1x use because it has no top guide- it’s meant to work with 2 chainrings and a front mech, which will keep the chain on up top.

    You’ll need one of the top guides suggested above (the e13 ones are the best IME).

    Posted 10 years ago
    m1kea
    Free Member

    Cheers guys

    I guess I was being optimistically naive with what I’d cobbled together.

    As this is a frankenbike bodge of old left over parts, I’m not going to do dedicated rings. I’ll grab one of the e13’s to see how tonight’s return trip fares, otherwise I might ‘revert’ back to 2 X 9.

    My other bikes are pucker 2 X 10 but this is an experiment with a ‘play’ bike.

    Posted 10 years ago
    nickdavies
    Full Member

    The chainring should work ok, not ideal but adequate.
    Just chuck on a superstar chain top guide, either bb mount or one of the seattube mount ones, cheapest way of doing it and i’ve never dropped a chain with mine. No need for anything else really.

    Posted 10 years ago
    munrobiker
    Free Member

    (PS- I have an e13 guide for sale, XCX in black BB mount. £15. Any good?)

    Posted 10 years ago
    Northwind
    Full Member

    I’ve found a normal unramped ring doesn’t make much difference over a shifting ring… Decent chain device or clever thick/thin ring absolutely essential. The Superstar one works OK but if you can stretch to it then it’s definitely worth going for a E13 XCX or an MRP 1X, they’re slightly better than the Superstar, but also far easier to get good results out of.

    Posted 10 years ago
    cyclistm
    Free Member

    MRP 1X and an on-one chainring works for me.

    I have a spare chain device if you want to borrow one.

    Posted 10 years ago
    cyclistm
    Free Member

    http://www.on-one.co.uk/i/q/CROOSS/on_one_stainless_chainring

    I am sure others are available.

    Posted 10 years ago
    m1kea
    Free Member

    Thanks munro but being Mr impatient I’m hoping to get this fixed before tonight’s ride home. If it’s good, I’ll then use this wagon tomorrow to throw myself at the scenery round the Brighton Big Dog course.

    [edit]

    Thanks Mark but see above

    Posted 10 years ago
    cyclistm
    Free Member

    No problem.

    Posted 10 years ago
    crankrider
    Free Member

    Best thing for keeping the chain on:

    http://www.workscomponents.co.uk/works-components-104bcd-thick–thin-chainring-alternating-thickness-extended-tooth-design-270-p.asp

    Or Raceface, from the usual sources (same, little more expensive, but in stock right away)

    My Works one is still awesome after a few months riding 🙂

    Posted 10 years ago
    cookeaa
    Full Member

    Generally recommended:
    -Un-ramped ring, something with a nice deep tooth profile – middleburn/RF/E13?
    -Top Guide, MRP, superstar
    -Shorten chain to minimum Number of links for largest sprocket (+2)

    Optional ideas:
    -Lower Roller, Blackspre stinger?
    -Go 1×10 just for the clutch mech?
    -Posh thick/thin or XX1 type chainring?

    Posted 10 years ago
    ritchic
    Free Member

    Cheapest way I found is to just leave front mech on an get it as low as possible. Better tryin that to see if u like before spending money I find

    Posted 10 years ago
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