zoster Posted January 2, 2009 Report Share Posted January 2, 2009 hii am building a new frame from marino - a 24"er with horizontal drop-outs and mod spacing.i read threads about snail cams and chain tugs and both seem sketchy. what's the optimum solution?what do modern bmx bikes use for instance? i see on danscomp they have quite a range of chain tugs http://www.danscomp.com/products.php?cat=P...ChainTensioners , but i'm not sure all use chain tugssome say "Designed for new style of frames with short dropouts" . i couldn't find out what that means..since it is a custom frame, i can ask for some special design (not too complicated though) maybe something that isn't as popular as chain tugs or snail cams but works better.. Quote Link to comment Share on other sites More sharing options...
J Trials 31 Posted January 2, 2009 Report Share Posted January 2, 2009 I'd just go with some Monty snail cams. Best thing I've ever used. Quote Link to comment Share on other sites More sharing options...
shamus Posted January 2, 2009 Report Share Posted January 2, 2009 or get a hole built into the dropout to accept a opposite 'chain tug'.these are basically a hole with a threaded bolt on the line of the axle, you can screw this out to push against the axle on both sides to tension the chainhowever they are part of the dropout instead of hanging out the back like some tensioners Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted January 2, 2009 Report Share Posted January 2, 2009 or get a hole built into the dropout to accept a opposite 'chain tug'.these are basically a hole with a threaded bolt on the line of the axle, you can screw this out to push against the axle on both sides to tension the chainhowever they are part of the dropout instead of hanging out the back like some tensionersLike On here ?I did try to post a pic but it wouldn't let me I've had nothing but trouble with snail cams, chain tugs are so easy to set up and so much better than cams imo. Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 (edited) On horizontal dropouts you have 2 real options, tugs or slammers. Tugs that sit on the end are obviously the standard conventions. However you may wish to have your wheel pretty close to slammed but due to tension of the chain it may need to be a very small distance away from the end. This is where slammer rings come in. sitting in the dropout they create the optimum distance from dropout to axle stopping it slip forward.EDIT... I also used to run bolts that came out through my dropout pushing the axle into postition these worked well too. Edited January 3, 2009 by Rich J Quote Link to comment Share on other sites More sharing options...
zoster Posted January 3, 2009 Author Report Share Posted January 3, 2009 what happens when the chain gets loose? get another slammer? (they are fixed spacers, right?) Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 Why would your chain run loose? Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted January 3, 2009 Report Share Posted January 3, 2009 Why would your chain run loose?Chain wear ? Quote Link to comment Share on other sites More sharing options...
zoster Posted January 3, 2009 Author Report Share Posted January 3, 2009 it stretches, doesn't it..? Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 Then really you should be running a new chain, not strectching this one further. However they do have a variation in sizes on the slammer them selves Quote Link to comment Share on other sites More sharing options...
zoster Posted January 3, 2009 Author Report Share Posted January 3, 2009 (edited) Then really you should be running a new chain, not strectching this one further. However they do have a variation in sizes on the slammer them selvesi'll buy a new chain ones my frame comes in, but isn't it the general idea that the chain stretches, and then you adjust the chain tension for it to be proper and still run it a while? there was a thread where a guy managed to get on vertical dropouts a good chain tension without using a tensioner, and everybody advised him to get a tensioner because the chain stretches in time, so i guess the rule isn't get a new chain as soon as your chain stretches a bit..? Edited January 3, 2009 by zoster Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 Well I'm not to sure on how much a chain stretches and such. What size axle drop out will you be running? Quote Link to comment Share on other sites More sharing options...
zoster Posted January 3, 2009 Author Report Share Posted January 3, 2009 Well I'm not to sure on how much a chain stretches and such. What size axle drop out will you be running?the most common one i guess, so 10mm. you recommend otherwise? Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted January 3, 2009 Report Share Posted January 3, 2009 the most common one i guess, so 10mm. you recommend otherwise?I think the 'Slammer rings' only come in 14mm after talking to Richard Would have solved a lot of my problems aswell Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 Probably not for trials no. Im a street rider but a non trials version so to speak. Those slammers are 14mm specific anyway I think. Probably the best way is a tensioner. Or perhaps run a single half link to get it as slammed as possible and keep it extra tight? Quote Link to comment Share on other sites More sharing options...
JonMack Posted January 3, 2009 Report Share Posted January 3, 2009 Like this, and like the Onzas, and like some BMX frames. ***. Quote Link to comment Share on other sites More sharing options...
zoster Posted January 3, 2009 Author Report Share Posted January 3, 2009 (edited) the closest thing (that i can do on my frame) to this:is something similar to this:you think it's worth the hassle ? does it seem more reliable than chain tugs or snail cams? Edited January 3, 2009 by zoster Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 3, 2009 Report Share Posted January 3, 2009 On my old frame when I ran bolts there.... It works however. Those dropouts could end up being rather thin... Quote Link to comment Share on other sites More sharing options...
bigamac Posted January 3, 2009 Report Share Posted January 3, 2009 Is there not any chain tensioners that you can fit on to horizontal dropouts? http://www.tartybikes.co.uk/product.php?pr...;category_id=48 Like this?Because im wondering about putting it on my mod. I know its very uncommon but the chain i have i think it might be easier. Quote Link to comment Share on other sites More sharing options...
Jordan GU Posted January 3, 2009 Report Share Posted January 3, 2009 Is there not any chain tensioners that you can fit on to horizontal dropouts? <a href="http://www.tartybikes.co.uk/product.php?product_id=10008&category_id=48" target="_blank">http://www.tartybikes.co.uk/product.php?pr...;category_id=48 </a>Like this?Because im wondering about putting it on my mod. I know its very uncommon but the chain i have i think it might be easier. Just get snail cams ? Quote Link to comment Share on other sites More sharing options...
shamus Posted January 3, 2009 Report Share Posted January 3, 2009 Is there not any chain tensioners that you can fit on to horizontal dropouts? <a href="http://www.tartybikes.co.uk/product.php?product_id=10008&category_id=48" target="_blank">http://www.tartybikes.co.uk/product.php?pr...;category_id=48 </a>Like this?Because im wondering about putting it on my mod. I know its very uncommon but the chain i have i think it might be easier. the 74kingz sits on the axle anyway so yes in theory you could use that style of tensioner..... no idea why you would if you have horizontal drops but there you go Quote Link to comment Share on other sites More sharing options...
onzatrip Posted January 3, 2009 Report Share Posted January 3, 2009 you cant use a 74 kingz on a mod ive tryed it and the tension goes striaght away . Quote Link to comment Share on other sites More sharing options...
Rich J Posted January 4, 2009 Report Share Posted January 4, 2009 To be honest probably just sensible to use tensioners.... http://www.alansbmx.com/product_info.php?c...1130871c1248e45 Quote Link to comment Share on other sites More sharing options...
bigamac Posted January 4, 2009 Report Share Posted January 4, 2009 the 74kingz sits on the axle anyway so yes in theory you could use that style of tensioner..... no idea why you would if you have horizontal drops but there you goBecause the chain i have, either one link out so it cant reach or one link in and to much slack even when the wheel pulled back fully. Quote Link to comment Share on other sites More sharing options...
Skoze Posted January 4, 2009 Report Share Posted January 4, 2009 Put in one half link?Seen it done many a time. Quote Link to comment Share on other sites More sharing options...
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