Luke Rainbird Posted December 21, 2010 Report Share Posted December 21, 2010 I know that I'm not the only one who's said that screwing on freewheels and sprockets is a bit silly, so you might be interested in this. Thanks to Mr Dark for letting me know someone had finally taken it on board and was looking at the idea http://www.sunnbicycle.com/francais/actualites/article/premiere-mondiale-atomz Runs an HG spline. Excellent. Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 how do you lock them on the cranks then? you would also need some other cranks wouldnt you? Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted December 21, 2010 Author Report Share Posted December 21, 2010 For now, this is the first move towards the system so there aren't any cranks available to run them, though presumably Atomz will be solving this To hold them on the cranks/hub you'd just have a small threaded lockring, as with current splined rear hubs. Spline takes the load from the freewheel, lockring undergoes very minimal axial loads putting negligible force through the threads (unlike current freewheels) If other manufacturers realise that actually, this is how things should have been for years now then we're onto a winner! Quote Link to comment Share on other sites More sharing options...
craigjames Posted December 21, 2010 Report Share Posted December 21, 2010 Definitely a step forwards. Nice that they're using the HG standard, makes things easier for other companies to follow suit; hope it catches on! Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 so it's just like a splined cog:) but why is this better than a threaded freewheel? Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted December 21, 2010 Report Share Posted December 21, 2010 so it's just like a splined cog:) but why is this better than a threaded freewheel? LOL, did you even read the above posts? It will be win, longasf**k bb here we come! Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 LOL, did you even read the above posts? It will be win, longasf**k bb here we come! yes! but i know why it's better now, i read the post again:) Quote Link to comment Share on other sites More sharing options...
casualjoe Posted December 21, 2010 Report Share Posted December 21, 2010 The future's bright, the future's splined. Quote Link to comment Share on other sites More sharing options...
craigjames Posted December 21, 2010 Report Share Posted December 21, 2010 LOL, did you even read the above posts? It will be win, longasf**k bb here we come! Can't see why the BB would have to be any wider than at present, the only extra width would come from the lock ring and that's only a few mm or so. Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted December 21, 2010 Report Share Posted December 21, 2010 Can't see why the BB would have to be any wider than at present, the only extra width would come from the lock ring and that's only a few mm or so. I bet it will be a problem. Quote Link to comment Share on other sites More sharing options...
CalopS Posted December 21, 2010 Report Share Posted December 21, 2010 Spline takes the load from the freewheel, lockring undergoes very minimal axial loads putting negligible force through the threads (unlike current freewheels) Can you explain that any simpler? I still don't fully understand why there is anything wrong with threaded freewheels besides them been awful to take off! Quote Link to comment Share on other sites More sharing options...
Revolver Posted December 21, 2010 Report Share Posted December 21, 2010 Dear any manufacturers that might be reading this thread, This is a fantastic idea that you should take up immediately. Atomz has already jumped in, all that is needed to make this a total success is your co-operation! Go for it! - Revolver Quote Link to comment Share on other sites More sharing options...
craigjames Posted December 21, 2010 Report Share Posted December 21, 2010 Can you explain that any simpler? I still don't fully understand why there is anything wrong with threaded freewheels besides them been awful to take off! That's one of the main reasons. But a splined interface is better capable at taking the loads applied to them than a screw thread. No more stripped free wheel/crank threads, no seized threads and no cross threading. Stronger more durable interface which has the added bonus of being a darn sight easier to take on and off, gone are the days where you need a 4 foot scaffold pole in your tool kit. Quote Link to comment Share on other sites More sharing options...
CalopS Posted December 21, 2010 Report Share Posted December 21, 2010 gone are the days where you need a 4 foot scaffold pole in your tool kit. Sounds good to me! Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 if you make a really hard pedal kick, would it not rip the spline? Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted December 21, 2010 Author Report Share Posted December 21, 2010 if you make a really hard pedal kick, would it not rip the spline? Hasn't done for the past 25 years, so I don't see why it would now with advances in manufacturing and materials Back to the freewheel: I'd like to see what's going on inside. Quote Link to comment Share on other sites More sharing options...
LukasMcNeal Posted December 21, 2010 Report Share Posted December 21, 2010 Have you seen the splines? They would be pretty tough, alot tougher than threads anyway. Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 it could be nice if they would start making this! Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted December 21, 2010 Author Report Share Posted December 21, 2010 Presumably they will be included on the next models that Atomz release. All we need now is a hub with a 15mm freehub body and nice wide flanges, plus some sexy cranks to match. I know I'll be getting some, that's for sure! Quote Link to comment Share on other sites More sharing options...
craigjames Posted December 21, 2010 Report Share Posted December 21, 2010 if you make a really hard pedal kick, would it not rip the spline? It's exactly the same splined interface as used on the majority of bikes Road and MTB's with gears, it's also used on the Hope Pro2 Trials and the Chris King Single speed hub. The Shimano HG (Hyper Glide), so it's a standard with a fairly proven track record. Quote Link to comment Share on other sites More sharing options...
Greetings Posted December 21, 2010 Report Share Posted December 21, 2010 I discussed this with Deng around 2-3 years ago, his reply was that it's a good idea but changing an industry standard is tough work. Hope this happens sooner or later though, it's a big step forward. Quote Link to comment Share on other sites More sharing options...
cai Posted December 21, 2010 Report Share Posted December 21, 2010 I would love to see this happen! Hope they make a matching crank arm as they may be expecting us to run these on a rear fixed splined hub.. I discussed this with Deng around 2-3 years ago, his reply was that it's a good idea but changing an industry standard is tough work. Well he's tryed changing the trials standard bottom brackets, surely this isn't much different? If other manufacturers step in with this idea too it'll be sweeeeet Quote Link to comment Share on other sites More sharing options...
monty221ti Posted December 21, 2010 Report Share Posted December 21, 2010 It's exactly the same splined interface as used on the majority of bikes Road and MTB's with gears, it's also used on the Hope Pro2 Trials and the Chris King Single speed hub. The Shimano HG (Hyper Glide), so it's a standard with a fairly proven track record. yeah i remembered that they where running this to, so it works just fine:) Quote Link to comment Share on other sites More sharing options...
Scott Gibbs Posted December 21, 2010 Report Share Posted December 21, 2010 as long as manufactures stick to the HG standard this will make things alot easier. Also if for example a rider had a fixed 6spd hub ie onza, viz! ect. If you so wished to have it become a freewheeling rear wheel you could almost infinatly adjust your chainline with a SS kit and your freewheel. Quote Link to comment Share on other sites More sharing options...
Mark W Posted December 21, 2010 Report Share Posted December 21, 2010 Prepare to herald new, higher crank prices too if this becomes the norm. One of the benefits of threaded systems is that they're a lot cheaper to produce, meaning crank prices don't have to jump up. Equally, until a freewheel as good as the SL comes along, I don't think I'd jump over to an Atomz setup purely to be able to take my freewheel off fractionally more easily. I don't really ever need to do it anyway, and with the correct tool, a vice and a long bar normal threaded freewheels are easy enough to take off anyway. The main thing though is just whether the freewheels are actually going to be any good. The ones as standard on the Quark 2s weren't that great at all, so unless they've dramatically improved the spring/pawls and not just put a splined section on there I just don't really see it as being worth it. It's cool they're trying it I suppose, but there are a lot of other parts of a trials bike I'd look at developing and refining before splined freewheels. Quote Link to comment Share on other sites More sharing options...
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