TrialZonn Posted April 24, 2008 Report Share Posted April 24, 2008 I own a Onza Cleaner and want to upgrade ot further...(cause I am very happy with my frame!!!)So I think I should start by changing the bottom bracket (I think I have an Onza square taper now)But I don't know the difference between Square taper and ISIS (there is for sure something more on ISIS, as I saw they were more expensive)I have not a problem with the money that I can spend, so I want something good (but not the most expensive I can find)The next thing are the cranks I think I will buy the echo 7075 CNC Cranks from tartybikes as they are a great valueI have also bought a Tensile Brake Booster for the HS33 and some new pads...If you have something else in mind to help me with my upgrade please inform me...Thank you for your time Quote Link to comment Share on other sites More sharing options...
Peperami Posted April 24, 2008 Report Share Posted April 24, 2008 Square taper has 4 edges (like a square) so its square peg, and square hole on the cranks. Isis has lots of edges, like a little cog... meaning that rather than a square which can become rounded, you get lots of contact area, and a stronger set-up like for like.Best bet if you're learning is upgrade bits as they break, or if theyre really heavy/ not performing well. Is there a problem with your cranks at the moment? Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted April 24, 2008 Report Share Posted April 24, 2008 If you feel that you're uncomfortable riding it,Try to find out what the problem is.Maybe ride some other bikes to determine what you like and dislike,Then you may have a clue as to what you want to upgrade.But if you're happy with it and can ride it comfortably,Then stick with what you have and only upgrade when something breaks, as Dan said! Quote Link to comment Share on other sites More sharing options...
cai Posted April 24, 2008 Report Share Posted April 24, 2008 The brake booster and new pads is a good call! And so is the cranks seeing as there very low in price right now.You could also think about lighter forks? Or a BB7 for the front. Quote Link to comment Share on other sites More sharing options...
kid creole Posted April 24, 2008 Report Share Posted April 24, 2008 (edited) If you still have the original onza hub on the rear wheel change it to a hope pro2 trial, cause the onza hub that came with my t rex had about 18 engagement points and its hard to ride with that. Edited April 24, 2008 by kid creole Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 24, 2008 Author Report Share Posted April 24, 2008 Thanks for the information about ISIS...I'm very satisfied with the bike...My cranks have not any problem yet but I thought that the Echo cranks are a great dealAs for the Onza hub my bike was equipped with,it has over 30 engagement points...(It's a good idea for the Hope Pro Trials though,thanks)I have another question...I was running a 6-speed cassette but 1 of my spockets has broken (and it was the bigger gear with 17 teeth)So I am now riding with 22T on the front and 16T on the rear...Do you think that this is a good combination for a high performance in pedalkicks and sidehops and for all the other pedal-based techniques???Or must I change to a 20T front or 19T to the rear???I have not a problem with riding with a cassette but if there is any way of changing to single speed without buying a new hub please tell me just to knowThanks to all of you guys Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted April 25, 2008 Report Share Posted April 25, 2008 Thanks for the information about ISIS...I'm very satisfied with the bike...My cranks have not any problem yet but I thought that the Echo cranks are a great dealAs for the Onza hub my bike was equipped with,it has over 30 engagement points...(It's a good idea for the Hope Pro Trials though,thanks)I have another question...I was running a 6-speed cassette but 1 of my spockets has broken (and it was the bigger gear with 17 teeth)So I am now riding with 22T on the front and 16T on the rear...Do you think that this is a good combination for a high performance in pedalkicks and sidehops and for all the other pedal-based techniques???Or must I change to a 20T front or 19T to the rear???I have not a problem with riding with a cassette but if there is any way of changing to single speed without buying a new hub please tell me just to knowThanks to all of you guysright...echo cnc cranks = ...really awesome value, i love mine22-16 i think is a bit harsh gearing ( 36.3 ) whereas the normal 18-16 is ( 29.7 ) and the other common 18-15 is ( 31.7 ) all values in gear inches by the way, from sheldonbrown.com...so the ideal would be about 22-20 ratio. ( 29.1 )You could buy a single speed kit like this: http://www.chainreactioncycles.com/Models.aspx?ModelID=2300 but with a larger rear cog from an old cassetteOn the onza hitman; i would say upgrade the rear hub....a second hand pro2 could cost as little as £60...................................pm me for the link Quote Link to comment Share on other sites More sharing options...
JonMack Posted April 25, 2008 Report Share Posted April 25, 2008 22-16 i think is a bit harsh gearing ( 36.3 ) whereas the normal 18-16 is ( 29.7 ) and the other common 18-15 is ( 31.7 ) all values in gear inches by the way, from sheldonbrown.com...so the ideal would be about 22-20 ratio. ( 29.1 )I didn't think gear inch values were very useful, i much prefer the standard way of:22:16 = 1.37518:16 = 1.12518:15 = 1.222:20 = 1.1I'd say if you want something similar to 18:16 or 18:15 your best bet is 22:19 or 22:1822:19 = 1.15822:18 = 1.223 Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 Gear inch values are pretty handy. They give an easier value to compare, are a little more accurate (if both are to 2dps or so) and make mod/stock comparisons simpler Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 25, 2008 Author Report Share Posted April 25, 2008 Many Thanks...From what you say I think I have to change my gears so..I will buy a 18T front chainring with a Bashring if I found one(if yoy know where please tell me)OR I will buy a rear cassette with 19T gear if I found a 6-speed(Echo has made a 7-speed with a gear of 19T but it's still on order and I don't know if it will fit my hub) Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 Running an 18t chainring can either be achieved with a screw on crank an bash setup (Echo, Tensile etc), or, if you are running/wish to run Middleburns, I can't fault my Heatsink Cloud9 bash at all (www.heatsinkbikes.com)Tartybikes will be worth a look around, you'll undoubtedly find the bits you need there if you have a look around Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 25, 2008 Author Report Share Posted April 25, 2008 If I buy a Middleburn 20T Chainring from tartybikes I may have a problem...My Bashring has a 4-bolt connection with my chainring (sorry if I spell it wrong)And the middleburn ring has 5 holes which means that I must change the cranks???or just the bashring??? Quote Link to comment Share on other sites More sharing options...
forteh Posted April 25, 2008 Report Share Posted April 25, 2008 If I buy a Middleburn 20T Chainring from tartybikes I may have a problem...My Bashring has a 4-bolt connection with my chainring (sorry if I spell it wrong)And the middleburn ring has 5 holes which means that I must change the cranks???or just the bashring???Middleburns use their own specific bashguard design that is splined onto the cranks, the only other option is for the heatsink cloud9 (which I can also very highly recommend ).IMHO middleburns are THE best cranks to have more pricey than all the others but you get lifetime warranty and theyre very strong whilst still pretty lightweight.I have a spare middleburn bashring with both 20 and 22 chainrings you can have should you choose to pick up a set Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 Middleburns use their own specific bashguard design that is splined onto the cranks, the only other option is for the heatsink cloud9 (which I can also very highly recommend ).IMHO middleburns are THE best cranks to have more pricey than all the others but you get lifetime warranty and theyre very strong whilst still pretty lightweight.I have a spare middleburn bashring with both 20 and 22 chainrings you can have should you choose to pick up a set I fully agree with this entire post, including the part about having a spare (nicely machined and unabused) bash Quote Link to comment Share on other sites More sharing options...
forteh Posted April 25, 2008 Report Share Posted April 25, 2008 I fully agree with this entire post, including the part about having a spare (nicely machined and unabused) bash Ah mines not quite so unabused now, but I could get it machined so that it was Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted April 25, 2008 Report Share Posted April 25, 2008 Best bet if you're learning is upgrade bits as they break, or if theyre really heavy/ not performing well.The brake booster and new pads is a good call! And so is the cranks seeing as there very low in price right now.Id seriously recommend these posts, trust me, save your pennies for later when these times occur. Theres no shitter feeling than looking longingly at your bike after a destroyed hub/broken BB etc. means you can't ride itBut a decent, fully working brake is where I would start first. It usually requires less money If you're dead set on upgrading cranks then you'll have to read these guys ^^ posts because I haven't much insight to stock cranks Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 You've got first shout if it's any use to the OP anyway, just letting him know that there's a pretty readily supply of them available if he should wish to change 22:19, 20:17, 18:16 and 16:14 are all pretty similar (lightish) ratios, so if it's possible to cheaply/easily try-outably test some to get an idea of what ratio you want/need, it's worth playing now to save money in the long runedit; I also have a 17t wide based Surly cog going spare... Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 25, 2008 Author Report Share Posted April 25, 2008 Thank you...But I don't think I can buy a full set of Middleburn Cranks and Chainring right now...I just want to solve me gear ratio problem for nowSo I want something near to 22-19T,20-17T,18-16 ot 18-15TAnd I already have a 22T front chainring with Bashringa 5-speed cassette(it was 6 but the upper gear with 17T has broken)with 16T to the top gearSquare taper Cranks...Have I any options to solve my problem without changing the Cranks or BB???(When I started the topic I didn't know that my gear ratio must be changed first...) Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 I just want to solve me gear ratio problem for nowSo I want something near to 22-19T,20-17T,18-16 ot 18-15TAnd I already have a 22T front chainring with Bashringa 5-speed cassette(it was 6 but the upper gear with 17T has broken)with 16T to the top gearSquare taper Cranks...Have I any options to solve my problem without changing the Cranks or BB???(When I started the topic I didn't know that my gear ratio must be changed first...)Ok, so does the bash/chainring you currently have fit together first off, and do you have a set of cranks that it fits to?If so, you just need to either get the full cassette together, or convert your hub to singlespeed with the suitable toothed cog, and some spacers.A complete kit with both can be found at most online bike shops, or you can get hold of cogs and spacers seperately (again, tartybikes would be a good call for these) Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 25, 2008 Author Report Share Posted April 25, 2008 Yes the bashring,chainring and the cranks fit together...I don't have problem buying a 20T front chainring with a bashring (I think at Tartybikes there is only the Tensile UCI bashring that has an option for 20T)or even a 18T front chainring and bashring (If I found one) and leave the cassette as it isIn this way I would have a 20-16 or even better a 18-16T ratioI think the last is the best option I have but I can't find a 18T Chainring Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted April 25, 2008 Report Share Posted April 25, 2008 18t chainrings don't really exist, as there's no room for the 4/5 mounting holes. This is why the only bolt on 18t chainring available at the mo is the Heatsink option, so it's either this or a screw on jobby.What cranks, bash and rear hub setup are you currently using/planning to use? The Echos? If so these will require a screw on ring, as found here Quote Link to comment Share on other sites More sharing options...
forteh Posted April 25, 2008 Report Share Posted April 25, 2008 (edited) Yes the bashring,chainring and the cranks fit together...I don't have problem buying a 20T front chainring with a bashring (I think at Tartybikes there is only the Tensile UCI bashring that has an option for 20T)or even a 18T front chainring and bashring (If I found one) and leave the cassette as it isIn this way I would have a 20-16 or even better a 18-16T ratioI think the last is the best option I have but I can't find a 18T ChainringThe smallest common size for chainrings is 20t, you physically cant make a smaller chainring without using a different bolt pattern which is what steve@heatsink does with his 18t middleburn bashguards. I think you can get 20t in 5bolt pattern, you might be able to find a 20t in 4 bolt if you search around.For a short term fix you could fit a full mountainbike cassette which will give you more options to play around with gearing and see which suits you best before making the plunge to singlespeed.Ive got an old xt cassette that you can have for postage costs, would need to check that I have all the smaller rings to space it all out though. Pretty sure the teeth are all ok apart from one or two of the bigger rings have got bent teeth from when I used to use it for trials on 32/28 gearing about 9-10 years ago, the 16-20 tooth range should be fine edit: damn monkeys typing with their feet aswell, shouldnt be allowed Edited April 25, 2008 by forteh Quote Link to comment Share on other sites More sharing options...
TrialZonn Posted April 25, 2008 Author Report Share Posted April 25, 2008 I recently have a setup of:the standard Onza cranks (that I bought the bike with)the Onza square taper BBthe Onza rear hub with a space for a 6-speed cassetteA 22T Chainring with a bashringI know this is not a good setup cause I didn't change anything from the time I bought the bikeThat's why I wanted to upgrade it and change these but...as it seem the drivetrain comes first...So there is any way to find a 18T chainring...But then what an Echo Control for exaple has as a front chainring???If there is any way to buy the Echo Bashring WITH the 18T chainring please tell me....(if it is compatoble with my cranks) Quote Link to comment Share on other sites More sharing options...
forteh Posted April 25, 2008 Report Share Posted April 25, 2008 I recently have a setup of:the standard Onza cranks (that I bought the bike with)the Onza square taper BBthe Onza rear hub with a space for a 6-speed cassetteA 22T Chainring with a bashringI know this is not a good setup cause I didn't change anything from the time I bought the bikeThat's why I wanted to upgrade it and change these but...as it seem the drivetrain comes first...So there is any way to find a 18T chainring...But then what an Echo Control for exaple has as a front chainring???I would keep the cranks, bash and ring that you have now and sort out the rear end as its easier to change the ratios that way. The xt cassette has the 1st 5/6 rings mounted on an aluminium carrier that slips onto the cassette, you may not need the extra spacers to tighten it up. If you measure the width of your current cassette Ill compare it to my spare one to see how well they match Thinking about it, it might be an xtr cassette, either way it would cost you about 5 quid postage to greece Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted April 25, 2008 Report Share Posted April 25, 2008 So there is any way to find a 18T chainring...But then what an Echo Control for exaple has as a front chainring???An 18t 'chainring' is a screw on sprocket: http://tartybikes.co.uk/product.php?id=10409 (as long as you have the right cranks) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.