Nice crank arms, but missing parts
They included 5 chain ring bolts, but neglected to provide the nuts for them. Had to go to a lbs and spend $21 + tax to get chain ring bolts with nuts.
One thing that seems odd, is on the drive side, they supply an arm stop washer. In the instructions, it states that the arm stop washer must be used for proper operation. But the drive side crank arm when torqued down, does not get anywhere near that washer, there is still nearly a 1/4 inch space between the arm stop washer and the side of the crank arm. Either the spindle is to big, or the crank arm hole is to small, to seat fully. Using the spindle for the puglsey.
This is on a Motobecane frame not a Surly frame. I did all the measurement, prior to purchase. According to their measurements, on their website, my chain line should have been further out, it is ok with the current tires I am running. But if I want to put some wider tires on, I will have to switch to a Moonlander spindle. Good thing that crank arm does not seat up against the stop washer, or there would be no chain clearance with the tires. Which are only 3.5'' for road touring.
There is always some risk in using a product designed for a specific frame, and adopting it to a different frame. But considering, the missing parts, a crank arm that does not seat as shown in the instructions, along with measurements, that might not be correct.
A company that is as specialized as Surly, one would think they could do better.Pros:
185 mm crank arms. My bicycle is setup for cross country touring. Currently about 100 lbs. for training, 150-160 lbs. for long distance travel. The longer crank arms certainly help when hitting the hills.Cons:
Missing parts, does not fit as shown and stated in the instructions. Measurements supplied on Surly website may not be correct. Not going to pull it all apart and measure it. But installed, the chain-rings dimensions are 4-5 mm less than stated in their documentation. Keep in mind the drive side crank arm does not seat all the way to the crank arm stop washer. If it did, it would be much worse, and would not work on this frame.
Will have to switch to the Moonlander spindle to put tires wider than, 3.5-3.75''. Or loosen the non-drive side crank arm and tap it in a bit. But I already have the outer edge of the spindle contact surface, at the outer edge of the bearings, so that would make the bearing load uneven, by not having full contact across all contact surfaces.
It was a hard call on which spindle to get, but if the actual measurements were the same as the documentation, it would have been perfect. Looks like the Moonlander spindle might have been the better choice.
Surly measurements: http://surlybikes.com//uploads/downloads/Surly_Crankset_Dimensions.PDF
Would Buy Again:
June 08, 2016Reviewed by:
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