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175mm Andel
Triple Crankarms
Shortened to 153mm Lengths from 105mm to 150mm |
$89 a pair if sold as just arms or $79 if sold as part of a crankset. MN residents add 6.875% sales tax (7.775% if you are in the metro area) |
 Shown w/24t Salsa & 36-46 FSA Chainrings - $190 36t ramped and pinned 110mm BCD rings are hard to find these days. But I found 4 old stock FSAs in a warehouse in Canada |
More and more riders
are discovering the advantages of using shorter crank arms. However
they have been stymied by the lack of reasonably priced, short cranks,
capable of accepting small 3rd chainrings. I have tooled up to shorten cranks by drilling and tapping new pedal holes. But few cranks have enough material in the area where a new pedal eye would go, to do so safely. Fortunately Andel crankarms have plenty of metal where it's needed. These are decent quality, nothing fancy, with a very hard, glossy black powdercoat. They take a 115mm, 118mm or 122mm square spindle. Due to the straight shape, these are among the handful of cranks that have as much metal, in the critical area at the sides of the new hole, as they did before shortening. |
| Prices, as of 10/2/2008, for some
typical cranksets
With Plain Rings With Ramped & Pinned Rings Other chainring combinations are available, see "Chainrings" page. |
These prices include crankarms,
labor to shorten them, 3 chainrings, crank fixing bolts and 2 sets of
chainring bolts, but not bottom bracket spindle.
I have to buy these as "arms only", without rings and bolts. The bad news is that the economics of assembling a crankset from modified arms and individual parts, means you end up paying near 105 prices. Do not send money, based on these prices.Due to worsening exchange rates, my parts costs can rise at any time. And, my suppliers are often out of at least some specific rings. Chainring prices vary widely, depending on brand and size. Contact me mark@bikesmithdesign.com or 612-824-2372, for a current quote and availability. |
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Bolt Circle Diameter (BCD) The middle and outer ring are 110mm BCD, inner is 74mm. 110mm BCD rings
are available in even tooth counts from 34 to 54, plus 39 and 53. People often ask if they can use the 52-42-30 rings from their road cranks. The answer is no, but unless you are very fast, or have a small drive wheel, a 52t chainring isn't much use at the higher cadences encouraged by short cranks. They usually end up keeping their old crankset intact, to sell or put on another bike, and buying smaller 110mm rings. If you aren't sure which you have, holes on a 110 are 64.7mm (2.55") between centers and 130s are 76.4mm (3.00") between centers. |
BB spindle; Square taper. I recommend
the Shimano UN-54 cartridge BBs. 115mm, 118mm or 122mm spindles produce
a chainline that works well with most good derailleurs. 118mm produces
the same chainline as Shimano 105/Ultegra triples.
It's best to support your local bike shops, for non-specialty items such as BBs. However, I can provide UN-54s if you need them. Q factor; 170mm with Shimano 118mm spindle. |