tdubz Posted January 24, 2012 Report Share Posted January 24, 2012 Got my first horizontal dropout frame before i describe my issue here is my current setup: hope pro 2 hub kmc chain zhi frame the issue i have got is that i cannot get snail cams to fit on the inside of the frame, and there doesnt appear to have any holes on the outside to run them with my wheel slammed to the front of the dropouts i am between links to acheive what looks to be suitable chain tension in my opinion i have three options 1. buy a shadow half link chain, but are these chains strong enough for trials, one of my biggest fears is chain snap on a drop scenario 2. buy a half link and fit it into my current chain, but i have heard these are not mega strong either 3. new hub, really dont want to do this due to cost and also like my hope hub 4. run chain tugs if anybody can recommend either the suggestions above or any other ways to do this i would be most helpful. Quote Link to comment Share on other sites More sharing options...
Greetings Posted January 24, 2012 Report Share Posted January 24, 2012 Your options would depend on what the dropouts look like. Quote Link to comment Share on other sites More sharing options...
tdubz Posted January 24, 2012 Author Report Share Posted January 24, 2012 Quote Link to comment Share on other sites More sharing options...
Greetings Posted January 25, 2012 Report Share Posted January 25, 2012 Chain tugs could be difficult and would require some severe modification to work but I'd start with that. Quote Link to comment Share on other sites More sharing options...
ezgonzo Posted January 25, 2012 Report Share Posted January 25, 2012 how about trying a different ratio, most/all frames with horizontal dropouts have a recommended ratio, i remember having to try different ratio's with my old zhi inorder to get a nice gearing and still be able to fit the chain + get the rim somewhat central to the brake mounts, i would stay clear of half link chains/links, your teeth will thank you for it, you should also be able to get away without useing cam's if your running a pro 2, i'm pretty sure they've got serrated axle ends and bolts so your wheel should'nt move under load, Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted January 27, 2012 Report Share Posted January 27, 2012 What this guy says. Zhi frames are designed for shorter cranks and 16t sprocket. what you can do (what I have done in the past) is file the dropouts forwards and not use the cams, this allows you to use 15t sprocket. I did this with both hope pro 2 and ffw set up. Quote Link to comment Share on other sites More sharing options...
cai Posted January 27, 2012 Report Share Posted January 27, 2012 I'd put a longer bolt in where the snail cam bolt should go, and coil a spoke around it. Spoke tensioner Like this (sort of): Quote Link to comment Share on other sites More sharing options...
Revolver Posted January 27, 2012 Report Share Posted January 27, 2012 There isn't a bolt hole for snail cams. Unless the hole doesn't go all the way through... in which case, you could just drill it all the way through and retap it, then you can use cams on the outside? OR, get that single extra halflink in there and don't be a fag and keep an eye on it and it'll be fine. Quote Link to comment Share on other sites More sharing options...
dave33 Posted January 27, 2012 Report Share Posted January 27, 2012 I think the hole is a blind hole. You could always drill a hole in the snail cam an bolt it to the frame, you would have to work out the position though. Should work fine Quote Link to comment Share on other sites More sharing options...
Paperclip Posted January 29, 2012 Report Share Posted January 29, 2012 Got my first horizontal dropout frame before i describe my issue here is my current setup: hope pro 2 hub kmc chain zhi frame the issue i have got is that i cannot get snail cams to fit on the inside of the frame, and there doesnt appear to have any holes on the outside to run them with my wheel slammed to the front of the dropouts i am between links to acheive what looks to be suitable chain tension in my opinion i have three options 1. buy a shadow half link chain, but are these chains strong enough for trials, one of my biggest fears is chain snap on a drop scenario 2. buy a half link and fit it into my current chain, but i have heard these are not mega strong either 3. new hub, really dont want to do this due to cost and also like my hope hub 4. run chain tugs if anybody can recommend either the suggestions above or any other ways to do this i would be most helpful. The Zhi frame is 135 as is your hub you should have no problem getting snail cams into the frame, if you have to pull the rear end of the frame slightly apart to get the wheel in then I would recomend you try this before any of your other options, also what gear ratio are you using on the pro 2 hub? The new frame is designed for 18:15 NOT 18:16 as said on other reply's to this topic.... There isn't a bolt hole for snail cams. Unless the hole doesn't go all the way through... in which case, you could just drill it all the way through and retap it, then you can use cams on the outside? OR, get that single extra halflink in there and don't be a fag and keep an eye on it and it'll be fine. Hard to explain but as the drop-out is designed to save weight. where the bolt is placed it has to only screw half way into the frame as you would hit the CNC flange zhi have made to increase weld area/save weight on the drop out, also due to this flange you could not run outer cam's. Quote Link to comment Share on other sites More sharing options...
cai Posted January 29, 2012 Report Share Posted January 29, 2012 The Zhi frame is 135 as is your hub you should have no problem getting snail cams into the frame, if you have to pull the rear end of the frame slightly apart to get the wheel in then I would recomend you try this before any of your other options I think your wrong, adding 3mm snail cams to each side of a 135mm hub means you'd need a dropout 141mm wide to accommodate everything nicely. Any 135mm hubs that are designed to be run with snail cams are effectively 129mm hubs with a 3mm snail cam placed either side. I'd rather try every other option possible before I resorted to forcing the rear end of my frame apart - resulting in a lot of un-needed stress to your frame.. Quote Link to comment Share on other sites More sharing options...
tdubz Posted January 29, 2012 Author Report Share Posted January 29, 2012 Ended up doing this Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted January 29, 2012 Report Share Posted January 29, 2012 Forgot to mention, I only used 1 cam on the drive side. Quote Link to comment Share on other sites More sharing options...
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