If you don't care about chain line, then sure. The White Ind double 
chainring gives perfect chain line across two separate gears. I don't think 
that would be possible with a standard double crankset. Here's a not great 
photo of the set up

[image: CAM00162_zpsa88332ab.JPG]

Hard to see but chainline is on target and perfectly straight, larger cog 
is to the left and almost touching the chain, the smaller chainring is the 
same up front. Machined to very specific tolerances to make what we are 
talking about work as best it can.

On Saturday, February 2, 2019 at 6:43:06 PM UTC-5, Patrick Moore wrote:
>
> No, I mean run, say a 17/20 in back and a, say, 42/39 in front, on a 
> Sugino or Pro 5 Vis or old Suntour XC Pro or what have you; ENO + Dingle 
> back and Pro 5 Vis front, say. No need as far as I can see for a White 
> Industries.
>
> On Sat, Feb 2, 2019 at 1:42 PM ian m <darkg...@gmail.com <javascript:>> 
> wrote:
>
>> Sure, you could run a triple crank up front and use a derailer to take up 
>> slack, if you were so inclined. The White Industries solution just happens 
>> to be not only incredibly practical but also elegant. Keeps your chain 
>> length the same, keeps your chain line straight, gives you two gears that 
>> are generally very well suited to either flats/hills or onroad/off. No 
>> chain slop and very easy to use.
>>
>> I've also been considering a fixed winter bike via the Paul fixed rear 
>> hub on an old MTB. Sounds delightfully ridiculous
>>
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