Removing Small Chainring Bolts

[steve_b]

ANyone have a POS Shimano m440 crank? What I thought was going to be a simple changing of the 32t middle ring has become a pain in the ass. The small ring has these odd bolts that attach it to the middle ring, and I don't have any idea what I need to remove them. The inside of the bolts are ROUND and not allen shaped. Is there another tool I have to buy? ???

[bike187]

you have to get a special wrench for the chainring bolts. go to the shop and ask them about it. they'll have one in their tools. you can either buy one for around $4-8, get teh shop to change em, or you can make your own too. it would help if you had a model to follow though so you might want to barrow someone else's if you choose to do this. shimano and park make models. i have a park one cause i plan on switching out my bash for a bigring on a few rides so it's nice to ave one at home. if it's a onetime thing, then you might just want to have the shop do it.

[steve_b]

The inside of the bolts are ROUND and not allen shaped.

After more review last night, the 22t ring has rivits attaching it to the 32t middle ring. I guess I can throw away both of them as the 32t rings teeth are shot. >:(

Next questions: Will 4-bolt Truvativ rings work with a 4-bolt Shimano m440 crankarm? I have 2 old sets of rings (one almost new) that are the same size (22/32/44). Will square Truvativ 5D crankarms work with a shimano square BB?

I'm going to replace the crank and BB sometime, (probably during the winter) and I am looking for a temp. fix to allow me to ride with a middle ring up 'tll the snow flies. Help!!

[steve_b]

Problem solved! Bikeman has the crankarms and rings for a total of $35 including shipping. ;D

Bikeman rocks !

Stop in the shop if you're ever in Woolrich. It's right on Rte 1 north after the Bath bridge. Well worth the stop even just to look around.


bill

[steve_b]

I go near there every summer on the way to Reid State Park. They always seem to have deals on stuff on the website. A field trip may be necessary.

The Mainers all look at me funny whilst I jump around the rocky coastline there at Reid. I would like to get a picture hopping a gap with a wave crashing behind me. Be carefull there those rocks can really chew through tires, and skin.

[steve_b]

How about going to Acadia and hucking thunder hole while the tide comes in? That would make a sweet pic!