Trials Cranks for 20" Monty

Trials Cranks for 20" Monty

Post by Chris Reede » Thu, 14 Sep 2000 06:44:24


  Has anyone found some standard (not splined) cranks in the 140mm range
that can take trials abuse?   Bent cranks are a little hard to ride on.

Chris Reeder

 
 
 

Trials Cranks for 20" Monty

Post by Arthur Doerkse » Thu, 14 Sep 2000 07:53:59


Quote:
>   Has anyone found some standard (not splined) cranks in the 140mm range
> that can take trials abuse?   Bent cranks are a little hard to ride on.

> Chris Reeder

From a post 8/30/2000:

My son Daniel and I are buying Shimano bike cranks (left side only) and
drilling and tapping
them for 9/16" pedals at 140 mm length.  Cut off the excess and you have a
very tough crank at about $12 US a pair (not counting $40 for the Park Tool
TAP-6
taps).  The cranks are labeled FC-C102-TY30.

Blessings!

Arthur Doerksen

 
 
 

Trials Cranks for 20" Monty

Post by Chris Reed » Thu, 14 Sep 2000 09:27:22

Arthur,

Sounds great!  A couple of questions:

Where are you getting the cranks for $6 a piece?  They're about $10 at
the bike shop, aren't they?  

How long does "really tough" last...  a month?

Do these cranks have a flat length to them so that you don't have to
build a jig just to bore a straight hole in them?  

Chris


Quote:



> >   Has anyone found some standard (not splined) cranks in the 140mm range
> > that can take trials abuse?   Bent cranks are a little hard to ride on.

> > Chris Reeder

> >From a post 8/30/2000:

> My son Daniel and I are buying Shimano bike cranks (left side only) and
> drilling and tapping
> them for 9/16" pedals at 140 mm length.  Cut off the excess and you have a
> very tough crank at about $12 US a pair (not counting $40 for the Park Tool
> TAP-6
> taps).  The cranks are labeled FC-C102-TY30.

> Blessings!

> Arthur Doerksen


 
 
 

Trials Cranks for 20" Monty

Post by Arthur Doerkse » Thu, 14 Sep 2000 04:00:00


Quote:
> Arthur,

> Sounds great!  A couple of questions:

> Where are you getting the cranks for $6 a piece?  They're about $10 at
> the bike shop, aren't they?

$9 Canadian at a local bike shop, WHEN they are available, or $25 for the
right crank+sprocket and left crank as a set.  They are the Shimano Tourney
(TY30) set.

Quote:

> How long does "really tough" last...  a month?

They seem to last until a drop too big.  Daniel has not found out how big
that is yet with these.  For the black steel Bicycle Europe cranks it is
about 4
feet, the soft aluminum Lun Chi's about 2 feet.

Quote:
> Do these cranks have a flat length to them so that you don't have to
> build a jig just to bore a straight hole in them?

They are a bit curvy, but were not hard to drill.  The tough part is lining
up the tap when threading.

Blessings!

Arthur Doerksen