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BMX General => BMX Chat => Topic started by: oldschoolace on October 25, 2014, 03:36 PM

Title: Twin chain/drive setups?
Post by: oldschoolace on October 25, 2014, 03:36 PM: Seen this done a few times and just wondering if anyone knows of suitable hub suggestions besides a clem twin. Can i just use any old flip flop with the right freewheel?
At the moment im thinking along the lines of machining a secondary thread on the non drive side of a suzue hub :D
Title: Re: Twin chain/drive setups?
Post by: john4130 on October 25, 2014, 04:22 PM: you would need a left hand drive freewheel. and a flip flop hub wont be any use as when you pedal the left side would just unscrew.
Title: Re: Twin chain/drive setups?
Post by: stidds on October 25, 2014, 05:06 PM: You will need a hub with both left and right hand drive threads. Which shouldn't be too hard to find these days.

You will also need either a left hand crank arm (with spider etc) or re-thread a right hand crank arm.
Title: Re: Twin chain/drive setups?
Post by: oldschoolace on October 25, 2014, 05:11 PM: What about 2 old school right hand crank arms (square spindle) and 2 right hand pedals :D
Title: Re: Twin chain/drive setups?
Post by: snoopy72 on October 25, 2014, 05:14 PM: Unless you loctite the thread the left hand pedal will come loose all the time
Title: Re: Twin chain/drive setups?
Post by: stidds on October 25, 2014, 05:15 PM: Quote from: oldschoolace on October 25, 2014, 05:11 PM
What about 2 old school right hand crank arms (square spindle) and 2 right hand pedals :D

Problem is that running a right hand crank arm with right thread pedal on the left it will unscrew the pedal.

What you can do is look at tandem crank set ups as the rear rider has both left and right drive crank arms.
Title: Re: Twin chain/drive setups?
Post by: oldschoolace on October 25, 2014, 05:44 PM: Oh course! Not thinking straight today :(
thread lock? :-[
Title: Re: Twin chain/drive setups?
Post by: snoopy72 on October 25, 2014, 05:55 PM: loctite 243
Title: Re: Twin chain/drive setups?
Post by: stidds on October 25, 2014, 06:00 PM: Do it properly and either rethread or find a classic left hand drive crank arm.
Title: Re: Twin chain/drive setups?
Post by: oldschoolace on October 25, 2014, 06:15 PM: Was only joking about the thread lock :)
Would deffo do it properly. Been seeing alot of nice orphan drive side crank arms recently and it got me thinking :chin:
Title: Re: Twin chain/drive setups?
Post by: chubby on October 25, 2014, 06:23 PM: I know where there's a spare southpaw Clint :whistle:
Title: Re: Twin chain/drive setups?
Post by: oldschoolace on October 25, 2014, 06:26 PM: :LolLolLolLol: yep my photographic memory of your ground sheet at MK had already woven it into the mix >:(
Title: Re: Twin chain/drive setups?
Post by: Dannywhac on October 26, 2014, 01:19 AM: Or - buy two 43/44 tooth spline drive sprockets and slap em on some Profile or similar cranks. No need for re-threading, but they ain't cheap Clint :daumenhoch:
Title: Re: Twin chain/drive setups?
Post by: chubby on October 26, 2014, 09:56 AM: Quote from: oldschoolace on October 25, 2014, 06:26 PM
:LolLolLolLol: yep my photographic memory of your ground sheet at MK had already woven it into the mix >:(

Best find the bugger then :LolLolLolLol:
Title: Re: Twin chain/drive setups?
Post by: Gary72 on October 26, 2014, 02:48 PM: Does it have to be old school. Cant remember who but someone makes a hub where you can take the driver out and put it in the other side. Think it is called bi-drive or something. Lots of newer cranks have both arms with a sprocket bolt.
Just a thought