Dan6061 Posted June 18, 2006 Report Share Posted June 18, 2006 (edited) Ok, first of all, I have fooked up the pedal thread in my dirve-side crank arm, along with the thread on the pedal.Nice.I've decided to get an ISIS BB while i'm at it, so ISIS cranks it is then (obviously )Been having a look about, and all the cranks I've seen are 170mm length.These cranks being Zoo, Echo, and then Tensiles in 165mm.Just wondering how much of a difference longer cranks would make to the 'feel' of the gearing.When I ha my old T-Bird with 170mm cranks, then went to some shorrrt Monty 219 cranks, it felt really different.As i'm running 160mm now, would 165-170mm make a lot of differnce? Or would it be barely noticeable?Also, which cranks would you lot recommend? I was looking at the Zoo ISIS ones on Tartybikes, £75 ones..They alright?Also...Which length BB axle would I need?My Sq Taper one is 127.5mm..would the ISIS need to be that long?I'm using a front cog btw.Cheers.And sorry if i've rambled on poinlessly throughout the post, it's late, and i'm in a rather shitty mood... Edited June 18, 2006 by Dan6061 Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 19, 2006 Report Share Posted June 19, 2006 I've got 175mm Tensile Urban Legends on my bike, and it feels super nice. I changed from 158mm to 175mm, and it was a nice feeling. It's weird at first 'cos your legs are used to maknig 158mm radius circles, so when you get on the 175's for the first time it's a bit odd, but the extra power you get is really nice. Basically, it's easier to pedal, so you get the power more easily, so it makes it nicer for static power moves, or power moves in general, basically.170 should be fine though. Bearing in mind that a lot of the main companies are doing 170-only cranks now, it should give you an idea Quote Link to comment Share on other sites More sharing options...
BeNNy Posted June 19, 2006 Report Share Posted June 19, 2006 I went from Onza Orbitas which are short? 160? it was short anyway...Went from them to the new Echo ones which are 170, and yeah, feel reallly weird for the first few times you go on it, but also feels better at the same time If your running a fixed cog on the front, I think any ISIS bb would be alright. I run a Echo external bb, with the cups outside. But if your going to run FFW i dont think you can run it with an External bb cos the cups will get in the way. If so, get internal bb from Echo Hope that made sense Quote Link to comment Share on other sites More sharing options...
ScotchDave Posted June 19, 2006 Report Share Posted June 19, 2006 Since we're on the topic, can anyone tell me why mod cranks sometimes come in 158mm? :$ Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 19, 2006 Report Share Posted June 19, 2006 Something to do with an imperial->metric conversion or something? I dunno, it's pretty weird/shit anyway Quote Link to comment Share on other sites More sharing options...
Ben Cox Posted June 19, 2006 Report Share Posted June 19, 2006 Since we're on the topic, can anyone tell me why mod cranks sometimes come in 158mm? :$so they can be made out of cheese and snap like shoit Ben Quote Link to comment Share on other sites More sharing options...
new_to_trials Posted June 19, 2006 Report Share Posted June 19, 2006 so they can be made out of cheese and snap like shoit BenI agree i got a t-bird and snapped onza 158mm cranks then got a pair of echos 175mm old version and still have them a year late very nices alot more power to.sam Quote Link to comment Share on other sites More sharing options...
Jez Posted June 19, 2006 Report Share Posted June 19, 2006 It's helluva weird feeling going from short to long. My Base has 165 (I think, could even be 160, I forget), and my 2.zero has either 170 or 175, and the difference (despite it only being 10-20mm) is huge. Feels kinda like you're riding a bent/f**ked taper crank or pedal. I think I prefer the longer ones due to the fact that the power goes down a lot quicker - it feels like I can approach stuff slower and more controlled rather than blasting at it for ups (which is where I reckon this makes all the difference). Having said that, I hear people going on about how higher gearing makes you gap better (which makes sense), so going longer might have a negative effect in that area.Ride a bike with short and a bike with long if you can, see which you prefer...I think for me it's longs for the quick snappy acceleration. I'm a snappy, flicky guy... Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 19, 2006 Report Share Posted June 19, 2006 Word. However, about the "more power = more good"; you're still getting all the lovely power of 18:12, it's just that it's easier. All you have to do is just adapt your technique It's not like going down to 18:13 to get it spinnier, whereby you're capping your top speed/max power, so you aren't losing anything as such, it just means you can suddenly get a load of power out Quote Link to comment Share on other sites More sharing options...
Mat Smith! Posted June 19, 2006 Report Share Posted June 19, 2006 I went from 18:12 and Onza musclemen thingysto18:13 with Montysto18:13 with 165 Tensiles, and the Tensiles feel so much nicer, purfik gear!Yum yum.Mat Quote Link to comment Share on other sites More sharing options...
Deonn h Posted June 20, 2006 Report Share Posted June 20, 2006 I went from 158 monty`s to 170 new echo cranks.It feels so much better.I was running18:12 with both cranks. Quote Link to comment Share on other sites More sharing options...
TrashZen Posted June 20, 2006 Report Share Posted June 20, 2006 (edited) I went from 158 monty`s to 170 new echo cranks.It feels so much better.I was running18:12 with both cranks.A tad bit out of focus .. but how do you undo a front freewheel? Couldn't find the topic..(... my pedal also ate into the crank's tread and made some aluminium puree)I am talking ACS claws on a try-all crank... hyper tightened...will just a big hammer do?? Edited June 20, 2006 by TrashZen Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted June 21, 2006 Author Report Share Posted June 21, 2006 Trashzen: If you can, attach the Freewheel tool onto a 24" breaker bar, and pull like mad!worked for me at work. On topic: Which axle length would I need for my BB?Zoo ISIS cranks, Plaz front cog...Any help? Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted June 21, 2006 Report Share Posted June 21, 2006 On topic: Which axle length would I need for my BB?Zoo ISIS cranks, Plaz front cog...Any help?Um frame too perhaps? Basically all it is is you want the straightest chain line possible, usually it means the shortest axle possible (unless your dropouts are 8ft apart as will says ) Im absolutly crap with bb lengths im afraid.Will Arnold says that his 118mm gigapipe JUST about clears the shell of a zoo python when using the old tensiles + an eno. You should be fine with a 118mm for the clearance side if you're using a cog. But for the love of gerald, don't quote me on that..... Quote Link to comment Share on other sites More sharing options...
future orange 660 Posted June 21, 2006 Report Share Posted June 21, 2006 are you sure the 'new feeling' that some of you are experiencing when changing cranks is not down to the crank itself? such as a better cranks being stiffer.its down to your size really. ladies specific bikes come with shorter cranks and the like. also roadies get very pedantic over the lengths of various parts in minute increments. Quote Link to comment Share on other sites More sharing options...
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