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Search: Posts Made By: KCT1986
Showing results 1 to 50 of 873
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Forum: General Cycling Discussion
05-06-24, 05:16 PM
Replies: 3
Views: 102
Posted By KCT1986

It depends on the group that is on the bike. If...

It depends on the group that is on the bike. If this is the Shimano equipped year, then it should be doable with 7 speed brifters and a road triple front derailleur. 7 speed brifters are not too...
Forum: General Cycling Discussion
05-06-24, 12:54 PM
Replies: 9
Views: 415
Posted By KCT1986

The difference in actuation ratio for FD between...

The difference in actuation ratio for FD between MTB & road really happened when road went to brifters. A possible reason is that early brifters had the shift unit in the very front of the pod. To...
Forum: Bicycle Mechanics
05-05-24, 04:46 PM
Replies: 15
Views: 287
Posted By KCT1986

Could you have changed the hub spacing when...

Could you have changed the hub spacing when rebuilding?

Shimano's spec below. Suntour stated 37mm for the same spec for 7 speed, back in the Accushift days, (7 sp ultra FW).
...
Forum: Classic & Vintage
05-05-24, 03:05 PM
Replies: 7
Views: 1,376
Posted By KCT1986

Can't speak about the quality of those rings. How...

Can't speak about the quality of those rings. How they will wear or shift may not be optimal, but that will depend on your use and expectation.

9/10 speed rings may have the teeth offset on the...
Forum: Bicycle Mechanics
05-05-24, 11:47 AM
Replies: 7
Views: 186
Posted By KCT1986

Never said the wide spline was for strength. ...

Never said the wide spline was for strength.

Said that as long as one of the splines is not cut-away on the back side, it is strong enough to prevent the sprockets from rotating in the non-drive...
Forum: Bicycle Mechanics
05-05-24, 10:19 AM
Replies: 7
Views: 186
Posted By KCT1986

The splines are cut-away in the non-driving side....

The splines are cut-away in the non-driving side. But as picture, at least 1 of the splines is full width so the sprockets can't rotate. Should not be enough force in that direction to need more...
Forum: Bicycle Mechanics
05-03-24, 12:35 PM
Replies: 8
Views: 269
Posted By KCT1986

Yes, that is exactly what I expected was...

Yes, that is exactly what I expected was happening.

The chainline difference would be 3mm, a little less than 1 sprocket inboard, usually not really noticeable. Just something to remember if you...
Forum: Bicycle Mechanics
05-03-24, 11:01 AM
Replies: 8
Views: 269
Posted By KCT1986

So, did you find that the model # is different...

So, did you find that the model # is different between your cranks?

The different models of the crank varies in the length of the spindle and has a small effect on the chainline & thread width (Q...
Forum: Road Cycling
05-02-24, 03:16 PM
Replies: 6
Views: 186
Posted By KCT1986

These seems to be the SL-BS78, 10 sp SIS or...

These seems to be the SL-BS78, 10 sp SIS or friction. Part of the DA 7800 group. The later BS79 was SIS only.

The light action refers to the spring assist. Earlier version shown below, should be...
Forum: Bicycle Mechanics
05-01-24, 02:13 PM
Replies: 8
Views: 269
Posted By KCT1986

Is the picture of the left arm? Is the right arm...

Is the picture of the left arm? Is the right arm marked in the same manner, with multiple model numbers?

Shimano sometimes mark crank arms with specific model numbers on the right, but multiple...
Forum: Early Brifter Bikes - 7,8, and 9 Speed
04-26-24, 04:58 PM
Replies: 8
Views: 482
Posted By KCT1986

The FH-6500 is a standard 8/9/10 speed freehub,...

The FH-6500 is a standard 8/9/10 speed freehub, what Shimano calls HG-M. As for cassette fitment, any HG spline from Shimano & compatibles will work, with rear spacer in some cases. Nothing unusual...
Forum: Bicycle Mechanics
04-23-24, 03:03 PM
Replies: 38
Views: 1,042
Posted By KCT1986

A thing to check is the distance between the...

A thing to check is the distance between the posts that the brakes mount unto. Shimano MTB V-brakes are usually speced to use an 80mm spacing standard. Narrower spacing would require that the rims...
Forum: Bicycle Mechanics
04-21-24, 08:38 PM
Replies: 65
Views: 2,279
Posted By KCT1986

There was a RX-100 triple crank, marked '-T'. ...

There was a RX-100 triple crank, marked '-T'. This was from earlier than the OP's bike, about '92 (7 speed group). It was one of Shimano's early use of 130/74 triple for road. Followed a few years...
Forum: Bicycle Mechanics
04-21-24, 04:58 PM
Replies: 65
Views: 2,279
Posted By KCT1986

You should double check your actual eqmt. The...

You should double check your actual eqmt. The bike may not have the exact parts in the listing. It may have had changes made to it, at the purchase point or later. What you stated in your original...
Forum: Bicycle Mechanics
04-20-24, 02:22 PM
Replies: 5
Views: 278
Posted By KCT1986

Yes, as stated prior, the 1st version has...

Yes, as stated prior, the 1st version has shortest C to C, and slight difference in upper pulley location.

Installing new cages should work. Shimano doesn't provide info on the bodies. But, many...
Forum: Bicycle Mechanics
04-20-24, 12:26 PM
Replies: 5
Views: 278
Posted By KCT1986

Not In this case, there is much more going on. ...

Not In this case, there is much more going on. See post #3.
Forum: Bicycle Mechanics
04-20-24, 12:23 PM
Replies: 5
Views: 278
Posted By KCT1986

For the RD-570?-? series, there are differences...

For the RD-570?-? series, there are differences in the cage of the models. 1st model was RD-5700. The 2nd version, (5700-A,) uses a different cage that is slightly longer between pulleys, and the...
Forum: Bicycle Mechanics
04-19-24, 02:07 PM
Replies: 43
Views: 1,352
Posted By KCT1986

Haha, don't know what is for, the MTB Shadow...

Haha, don't know what is for, the MTB Shadow style RD that I've seen doesn't have it.

Guess that it would keep the bracket from rotating backward, but the bracket is supposed to be firmly attached...
Forum: Bicycle Mechanics
04-19-24, 01:41 PM
Replies: 43
Views: 1,352
Posted By KCT1986

Yes, just move it into the correct position. All...

Yes, just move it into the correct position. All else should be good.

Disregard all the other unhelpful posts, DONE.
Forum: Bicycle Mechanics
04-19-24, 12:34 PM
Replies: 43
Views: 1,352
Posted By KCT1986

Something to double check is if the RD is...

Something to double check is if the RD is installed correctly. The attachment of the bracket axle unit (the upper link) to the frame's hanger looks a little more vertical than common. And also the...
Forum: Classic & Vintage
04-17-24, 10:51 AM
Replies: 14
Views: 543
Posted By KCT1986

There shouldn't be anything inherently slower on...

There shouldn't be anything inherently slower on the design on the Cdale. It may be a little heavier @ 21 pound but common for mid 80s. Wheels are probably 36 spokes, also common. The rest of the...
Forum: Bicycle Mechanics
04-16-24, 08:32 PM
Replies: 15
Views: 671
Posted By KCT1986

If you decide to rebuild, Sheldon Brown has a...

If you decide to rebuild, Sheldon Brown has a good writeup of wheelbuilding. Very worth a read if you haven't done so already. Includes step by step directions in the easy to read method. Can be...
Forum: Bicycle Mechanics
04-15-24, 04:44 PM
Replies: 11
Views: 572
Posted By KCT1986

The position of the H screw will depend on the...

The position of the H screw will depend on the cranks chainline (and to a degree how 'lack of wobble' your rings are). Chainstay length and cassette width also plays a part.

As for adjusting, it...
Forum: Bicycle Mechanics
04-13-24, 08:08 PM
Replies: 39
Views: 1,840
Posted By KCT1986

The info from Suntour was from the late 80s when...

The info from Suntour was from the late 80s when there were many problems with Accushift equipped bikes. One of the issues was probably from the continued use of brake housing instead of the...
Forum: Classic & Vintage
04-13-24, 02:12 PM
Replies: 11
Views: 386
Posted By KCT1986

That is a cassette. You need to check if your hub...

That is a cassette. You need to check if your hub has a freewheel or freehub.

Do a quick look at the Sheldon Brown links that are a 'sticky' in the Mechanics sub-forum.
Forum: Classic & Vintage
04-13-24, 12:17 PM
Replies: 11
Views: 386
Posted By KCT1986

If the rear wheel is original, it will probably...

If the rear wheel is original, it will probably be a freewheel type hub, not the more modern freehub type.

With the freewheel type, you are generally limited to a 12T outer sprocket. The standard...
Forum: Bicycle Mechanics
04-12-24, 12:32 PM
Replies: 16
Views: 553
Posted By KCT1986

During this time period Shimano sometimes used a...

During this time period Shimano sometimes used a shift mechanism that was an integrated 'pod' that bolted to the bracket or brake bracket.

Best step is to look for the model number printed on the...
Forum: Bicycle Mechanics
04-12-24, 10:48 AM
Replies: 31
Views: 772
Posted By KCT1986

He is probably referring to the numbers on the...

He is probably referring to the numbers on the shifter indicator. 3 (large chainring), 2 (mid), 1 (small), and 7 (outermost sprocket), ...1 (innermost sprocket). So, 37 if something like 42T front,...
Forum: Bicycle Mechanics
04-10-24, 09:30 PM
Replies: 4
Views: 306
Posted By KCT1986

While some UG cassettes use the spacer between...

While some UG cassettes use the spacer between the outermost sprockets, this is a Dura ace UG only freehub. These have the unique smaller treaded sprockets and are the integrated spacer type. The...
Forum: Bicycle Mechanics
04-10-24, 07:15 PM
Replies: 4
Views: 306
Posted By KCT1986

That looks like a quite thick spacer. Possibly a...

That looks like a quite thick spacer. Possibly a thinner spacer back there will provide a happy medium, allowing both RD/spoke clearance and sprocket/seatstay room. With an UG locking sprocket, the...
Forum: Bicycle Mechanics
04-10-24, 02:33 PM
Replies: 39
Views: 1,840
Posted By KCT1986

Shimano & Suntour included wound housing with...

Shimano & Suntour included wound housing with their RD in the early index days, marked SIS or Accushift.

Bike OEMs and shops may have neglected to use the 'approved' housing (wrong color?).:) ...
Forum: Bicycle Mechanics
04-10-24, 01:00 PM
Replies: 39
Views: 1,840
Posted By KCT1986

You may be seeing 5mm wound housing, but Shimano...

You may be seeing 5mm wound housing, but Shimano and Suntour had a different type of wound that were designated for index shifting. Wound is still used by Shimano on the lower speed groups even now,...
Forum: Bicycle Mechanics
04-09-24, 09:42 PM
Replies: 4
Views: 350
Posted By KCT1986

Don't know about the cable stop attachment...

Don't know about the cable stop attachment method, but it has been reported on here that the liners sold for bikes are available in couple of sizes.

Another source of a liner would be ebay. There...
Forum: Classic & Vintage
04-08-24, 08:25 PM
Replies: 27
Views: 1,130
Posted By KCT1986

These era brifters, and the brake levers that it...

These era brifters, and the brake levers that it replaced, were not conducive to 'resting' the hands on the bracket/shift mechanism. It works better if it is grabbed with the palms facing inwards or...
Forum: Classic & Vintage
04-08-24, 03:10 PM
Replies: 27
Views: 1,130
Posted By KCT1986

Yes, this is probably your best course of action....

Yes, this is probably your best course of action.

If you want to maintain the classic 'look' of the bike/bar then you'll probably have to make some compromises. As others have mentioned, these...
Forum: Bicycle Mechanics
04-08-24, 11:30 AM
Replies: 10
Views: 375
Posted By KCT1986

Looks like that may be a lockring for a cassette...

Looks like that may be a lockring for a cassette with a larger outer sprocket. Is it marked 11T?
Forum: Bicycle Mechanics
04-06-24, 11:57 AM
Replies: 16
Views: 609
Posted By KCT1986

Don't use too much lube on the nipples. Too much...

Don't use too much lube on the nipples. Too much lube can get into the hollow chamber of the rim and is impossible to clean. This will make a mess later on the rim tape as the lube seeps out. Just...
Forum: Bicycle Mechanics
04-05-24, 08:48 PM
Replies: 15
Views: 519
Posted By KCT1986

Yes, you'll need to research the feasibility of...

Yes, you'll need to research the feasibility of replacing the freehub body. The interface of the XDR cassette/freehub body is a 'standard', but how the body attaches to the hub could vary.

Don't...
Forum: Bicycle Mechanics
04-05-24, 07:48 PM
Replies: 15
Views: 519
Posted By KCT1986

Sounds like SRAM XDR. Left side of pic. ...

Sounds like SRAM XDR. Left side of pic.

Depending on the hub manufacturer, there may be a HG spline type available. You'll need to ID the hub/wheelset and research.
...
Forum: Bicycle Mechanics
04-05-24, 04:26 PM
Replies: 15
Views: 519
Posted By KCT1986

You need to get more info about the freehub body...

You need to get more info about the freehub body or picture.

Likely it is a Hyperglide style with the 11 speed length, which is compatible with 12 speed Shimano made cassettes. HG 10 speed fits,...
Forum: Early Brifter Bikes - 7,8, and 9 Speed
04-05-24, 12:31 PM
Replies: 15
Views: 1,931
Posted By KCT1986

If you stay 9 speed and want aero cable routing...

If you stay 9 speed and want aero cable routing for the shift cables then ST-R3030 (front) is your only choice for Shimano.

For non-aero, there are a number of older models (65??, 55??, 4400). ...
Forum: Bicycle Mechanics
04-03-24, 08:11 PM
Replies: 10
Views: 345
Posted By KCT1986

Possibly a older 9 speed, FD-6503 or 5503/04 may...

Possibly a older 9 speed, FD-6503 or 5503/04 may be an option. These were designed for a 52/42 combo, so 10T instead of the 13T of later models. The cage is slightly different from the FD-6603.
...
Forum: Bicycle Mechanics
04-03-24, 04:11 PM
Replies: 20
Views: 787
Posted By KCT1986

Another possible option, is to use a small washer...

Another possible option, is to use a small washer at the end of the housing to 'square off' the load that may be presented by a slightly 'cocked' alignment.

For shifter housing, I drop these...
Forum: Bicycle Mechanics
04-03-24, 03:51 PM
Replies: 31
Views: 1,146
Posted By KCT1986

Well, that's good to hear. You want the rear...

Well, that's good to hear.

You want the rear DS set of spokes to be very close to the perfect length. The calculated end should be between the 'slot' and top of the head, or a little beyond after...
Forum: Bicycle Mechanics
04-03-24, 12:36 PM
Replies: 20
Views: 787
Posted By KCT1986

The EZ bend segment is for use when the routing...

The EZ bend segment is for use when the routing from the brifter needs to make a hard bend, either at the brifter/hbar junction or next to the bar. It uses a wound housing in this section so it can...
Forum: Bicycle Mechanics
03-31-24, 08:01 PM
Replies: 31
Views: 1,146
Posted By KCT1986

Yes, about what was expected based on the pics...

Yes, about what was expected based on the pics (the top of the wrench flat is quite close to the rivet). Some change must have been made, possibly to the 'cup' or the rivet for the spoke...
Forum: Bicycle Mechanics
03-31-24, 05:02 PM
Replies: 6
Views: 333
Posted By KCT1986

For the older FDs, the clamp on adapter was the...

For the older FDs, the clamp on adapter was the same, just different diam. Having part #s like SM-AD1? for different sizes.

Some of the newer FDs have newer part #s for the adapters. Number such...
Forum: Bicycle Mechanics
03-31-24, 02:57 PM
Replies: 21
Views: 792
Posted By KCT1986

In 1x 12 speed, SRAM has wide in most lines, but...

In 1x 12 speed, SRAM has wide in most lines, but the Q factor just goes up from 145 only to 150. This is based on 2022 lineup. So barely a change, 2.5mm of the change if equal L & R.
Forum: Bicycle Mechanics
03-31-24, 12:57 PM
Replies: 31
Views: 1,146
Posted By KCT1986

Looking at your pictures, it seems that your...

Looking at your pictures, it seems that your spokes about 3mm short, if targeting between bottom of slot & top. Have you double checked that the lacing is correct? If you followed Sheldon's...
Forum: Bicycle Mechanics
03-29-24, 07:51 PM
Replies: 7
Views: 315
Posted By KCT1986

Here's how the DA freehub looks. Smaller...

Here's how the DA freehub looks. Smaller threaded portion, splined portion the same as all other UG, (and later HG, except for the wide/narrow splines that HG used for 'shift point' alignment(.

...
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