51. How to Install a Shimano HG or IG Chain

Removal and installation of a Shimano HG or IG chain pin.

IMPORTANT: Nuts and bolts on your bike should always be tightened to the manufacturer's specifications.
How to Install a Shimano HG or IG Chain

In this tutorial, we will learn how to remove and install a connecting pin on a Shimano HG or IG chain. These type of chains always require a special replacement pin that has larger peens.

Tools

For this job you will need a Shimano compatible chain tool such as the Park CT-3, and a set of pliers for breaking the connecting pin after installation. You will also need a black Shimano replacement connecting pin for 6, 7 or 8 speed chains, or a silver pin for 9 speed super narrow chains.

Chain Pin Removal

The first step is to break your chain using a chain tool. If you have previously used a replacement connecting pin, do not disconnect on that pin. The replacement pins can only be used once. Break the chain on any previously unused pin. When you push the pin out, it may be difficult as it will widen the plate holes on its way through. The replacement pins have wider peens to make up the difference. Once removed, discard the old pin.
 

Chain Pin Installation

When installing a chain, always place the chain in the chain tool grooves furthest from the handle. See the tutorial titled “How to use a chain tool” for more detailed instructions.
 
Push the replacement pin in with the narrowed end first, then tighten until the narrow end is fully exposed on the other side. The wide end should protrude equally on both sides of the chain.

Now using your pliers, break off the narrow end of the pin. If the link feels stiff, place the chain on the inner grooves of the chain tool closest to the handle, and tighten it just a bit until the link rotates smoothly. For more tips on loosening stiff links, see our tutorial titled “How to loosen a stiff chain link“.

Tags

Discuss this topic in the Chain Forums

07/22 Cassette Sizes

Hi guys,

I'm currently have a Shimano 105 derailleur, 11-25T 10 Speed. I want more help on hills, and will be switching to a 11-27 or 12-27 cassette. I'll buy a new chain also.

What is the difference between the 11-27 and 12-27? Will I have to change my derailleur since this will be a new size?... Read more >>

07/21 Gear teeth number

I have a SR-500 all Shimano 105 Components.The bike came from factory with six speed 13 tooth thru 23,at some point before I got it it was changed to 14 tooth to 24.Know that there was a option for a 53 tooth Biopace but don't see any on the normal sites.I think the 53 will work with 14 tooth,anyone ever try this gear ratio?... Read more >>

07/20 Lockrings & Crankset

When purchasing a new crankset, would you get a new lockring, or would that have to be brought separately? As the lockring on my bike is damaged, though not budging. Only just realised this, (face palm)... Read more >>

07/10 Chain jumping off Chainring

I have a Gary Fisher Marlin that's 10+ years old. I bought a bash guard and removed the big and small chainrings as well as the front derailleur. I'm not using only my old middle chainring up front. I first attached the chainring backwards, but noticed this when the chain was jumping off while the bike was still on the stand. I took the crank off, unscrewed everything, and put it back on facing the right way.

Went for my first ride this morning and the chain kept jumping off the chainring, especially when going over bumps and regardless of the gear I was in.

I h... Read more >>

07/02 Freewheel/Casette Spanner/Wrench Confusion, Help!

Hi, I'm new here and fairly new to bike mechanics. I have an old Mongoose Rockadile SX from 2004. I'm trying to remove the 7 speed shimano casette it came from the factory with to a new wheel. I made sure I got the spacer as the new wheel has an 8-9 speex hub. I have a cheap x-tool bike tool kit. It has 2 free wheel wrenches/spanners. Both are too big. One is only slightly too big. Maybe 1mm if that. I think that spanner/wrench is an fr-1 but I'm unsure. Can anyone help with advice or links to the right type of casette spanner/wrench?

The wheel I have bought is a Halo Combat II,... Read more >>

07/01 New bike chain problem

I got a new 24 speed specialized a few months ago and I'm having problems with my chain.

On certain gears the chain jerks. I took it in for a free 30 day tune up. Before that it was the 4th gear and now the 7th gear is starting to act up. The gears also jerk when I put pressure on them.

The pedals were also doing something weird. I'm not technical, I'm trying to learn, but I would describe it as something loose. There was a pulse that eventually turned into a wobbling every rotation. The shop I took it to did a pedal realignment and it worked fine for a while.
... Read more >>

06/25 General question re Chains

Hi everyone..,first-time poster here, hoping to learn so,I can enjoy my biking pleasure. First an intro..I am now 59 years old, took up biking around 8 months back.., total couch potato on 7 different maintenance meds.. now have racked up more than 4000km, 30lbs lighter, completely off meds and am absolutely addicted to my bike... my first bike was a Giant Seek 2 Hybrid which I got 3rd-hand..,served me well and put more than 2000kms on it on paved roads.. once I knew I was serious, I invested in new bike which my nephew and I had assembled.. it's a MTB frame,,rigid fork, hard-tail with Deore g... Read more >>

06/10 Advice needed for schwinn adult trike

Hi...just seeing if someone had any advice....my son has older model schwinn adult trike...when he was riding it tonight something happened where he can peddle & move the bigger chain but it wont move the smaller chain on back wheel...its like hes free wheeling...like something isnt engaging....any ideas?... Read more >>

05/24 Sugano Chainring bolts for old bike - place to source?

I have an old bike with Sugino crank and have lost two bolts and bolts, on the bolt thread 8 mm long and then has a 3.5 mm larger bulb the width of the head is 7.9 to 8 mm. Any ideas on where I can source?... Read more >>

05/22 Cassettes v Freewheels...

Hi guys

My rear wheel needs replacing. It has a freehub cassette body and I am currently using an 8-speed cassette with it. A replacement rear wheel is costing around £50.

On the other hand, i've seen a cheaper rear wheel with a freewheel body costing around £25 and I've also seen 8-speed freewheels selling for around £10.

Question is, will this cheaper wheel with freewheel body & 8-speed freewheel fit my bike? It is for a mountain bike by the way.

Thank you.... Read more >>

05/21 Can somebody tell me what is wrong?

Can somebody tell me what is wrong?... Read more >>

05/19 Chain skipping under pressure

Hi,
My (double) road bike with Shimano 2300 has developed a problem. If I put pressure down on the pedals, especially uphill when I'm out of the saddle, my chain skips. I've recently had a brand new rear derailleur put on the bike, with new cables, all adjusted by a bike shop. I've checked the bike on a stand and the gears look in perfect alignment, they shift brilliantly in the stand. The chainset is well greased too...

I've thought these are the most likely, can anyone advise as to what is most likely? Or if there's anything else you'd expect?

-My shifter, ... Read more >>

05/14 Chain Slips/Skips

Trek 470 road bike, yes it's old but well maintained although the chain skips at varying degrees of intensity. I have about 40k miles on this bike and to combat this skip I've recently had the following done by a reputable bike repair shop at the same time: replaced chain, replaced both front rings and replaced the entire cassette.

Skip has improved if such a thing is possible however, it does continue to skip while in either ring and in any gear.

I live in Florida therefore, no hills only flat surface.

What is the next logical thing that should prob... Read more >>

04/24 Cross Chain Issue with Chain Jamming in Tension Pulley Cage

I am building up my bike that is quite a bit customized as far as components. Right now I am having issues where the chain is running off the rear derailleur tension pulley and jamming between the pulley wheel and cage when ever it is cross chained in the small cog/small chainring position. The cross chaining is definitely pulling the chain off the pulley wheel. It doesn't happen right away and takes a few turns of the crank before this occurs.

I don't plan to ever crosschain but was wondering if there is a resolution to this. The only reason I want to resolve this is if I acciden... Read more >>

04/17 Cheap, welded chainrings?

Hi. New member.
I working in Cambodia, riding a 2011 Giant Escaper 26" 24SP.
It's not a great bike, but it's what they gave me, and it works OK for what I need.
But now my large chainring is well worn, and has some broken teeth.
Looking to change out the one ring (since the others and sprockets all
look pretty good still), this set looks like nothing I've ever seen before. (Maybe because most bikes I've ridden in the past were of noticeably higher quality.)
There are no bolts/screws holding the rings together! It appears this Shimano set has all t... Read more >>

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