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Search: Posts Made By: kommisar
Showing results 1 to 50 of 156
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03-23-24, 04:35 AM
Replies: 46
Views: 1,005
Posted By kommisar

I like a 1.3 gain ratio for those occasional 16km...

I like a 1.3 gain ratio for those occasional 16km 1000m climbs. On my current gravel bike that is obtained using a 24t chainring with a 40t cog.
03-11-24, 09:36 AM
Replies: 47
Views: 1,192
Posted By kommisar

IMO the xtr 900 group of the early-mid 90s was...

IMO the xtr 900 group of the early-mid 90s was the pinnacle of mechanical parts.
12-20-23, 03:39 PM
Replies: 48
Views: 36,759
Posted By kommisar

Seat height is measured from the bottom of the...

Seat height is measured from the bottom of the pedal stroke, not the middle so yes the seat will be raised approximately by the difference between the long crank length and the short crank length....
12-18-23, 08:31 PM
Replies: 48
Views: 36,759
Posted By kommisar

Advantages of shorter crank include less chance...

Advantages of shorter crank include less chance of pedal strike, knee doesn't rise as high at the top of the stroke requiring a smaller range of motion.
Disadvantages of shorter crank include less...
11-17-23, 03:02 PM
Replies: 80
Views: 4,514
Posted By kommisar

Thats a mustache trimming jig. Makes sure your...

Thats a mustache trimming jig. Makes sure your stache ends up proportional. The wire is to power the heating element for the foam dispenser.
11-09-23, 07:19 PM
Replies: 24
Views: 1,091
Posted By kommisar

With extreme wide range 3x setups, I just size...

With extreme wide range 3x setups, I just size the chain for the large chain ring, large cog and then only use the small chain ring with the largest 3-4 cogs. If you go small / small you get a loose...
11-09-23, 07:05 PM
Replies: 155
Views: 7,124
Posted By kommisar

If you go fix gear, you won't need brakes, or...

If you go fix gear, you won't need brakes, or cables. Just saying...
Forum: Touring
11-04-23, 04:18 PM
Replies: 42
Views: 1,952
Posted By kommisar

If I were buying a touring bike new today, I...

If I were buying a touring bike new today, I would go for a rivendel Gus Boots Wilson for traditional rim brakes and 3x drive train or a Jones SWB complete with smooth tires for more modern disc...
10-25-23, 06:59 PM
Replies: 25
Views: 1,021
Posted By kommisar

Sheldon Brown (or John Allen) says splicing a...

Sheldon Brown (or John Allen) says splicing a cable is easy and does not require any extra hardware:

https://www.sheldonbrown.com/heroic-repairs.html

scroll down to the "splicing cables" section
10-24-23, 07:13 PM
Replies: 7
Views: 402
Posted By kommisar

These guys service all types of internal geared...

These guys service all types of internal geared hubs and have some good advice:

https://www.rideyourbike.com/internalgears.shtml

You should also check out Sheldon Brown's (and John Allen's)...
10-19-23, 09:25 PM
Replies: 14
Views: 486
Posted By kommisar

I shift a 48, 38, 28 triple using an suntour...

I shift a 48, 38, 28 triple using an suntour cyclone mk2 front derailleur. It is normally labeled as a double but works perfectly with a triple.
10-11-23, 02:21 PM
Replies: 59
Views: 2,221
Posted By kommisar

If I remember calculus class right it must pass...

If I remember calculus class right it must pass through zero, so I say no swirl.
10-10-23, 08:38 AM
Replies: 59
Views: 2,221
Posted By kommisar

Thats nothing. Wait until you see which way the...

Thats nothing. Wait until you see which way the toilet water swirls. Prepare to have your mind blown.
10-08-23, 06:40 AM
Replies: 17
Views: 1,050
Posted By kommisar

I would ditch the change in wheel size. I would...

I would ditch the change in wheel size. I would be concerned that it would effect tire clearance at the fork crown and bottom bracket because of the increased diameter. At least one "expert" thinks...
09-20-23, 10:07 PM
Replies: 55
Views: 1,986
Posted By kommisar

Sheldon Brown (or John Allen) says splicing a...

Sheldon Brown (or John Allen) says splicing a cable is easy and does not require any extra hardware:

https://www.sheldonbrown.com/heroic-repairs.html

scroll down to the "splicing cables" section
08-27-23, 10:11 AM
Replies: 14
Views: 521
Posted By kommisar

its pretty simple: 20" for kids bikes and...

its pretty simple:

20" for kids bikes and recumbents
26" for off road bikes
27" for road bikes

Forget about the rest of them.
07-29-23, 03:14 PM
Replies: 41
Views: 1,830
Posted By kommisar

Good choices too. The m739 sgs has max take up...

Good choices too. The m739 sgs has max take up of 38 and max cog of 32T. The gt cyclone mk1 has max take up of 36 and max cog of 32 or 34T depending on length of the hanger. The gt cyclone mk2 has a...
07-28-23, 01:20 PM
Replies: 41
Views: 1,830
Posted By kommisar

With a triple you really want a long cage...

With a triple you really want a long cage derailleur. I suggest a shimano rd-m310. It has a take up of 43 and max cog of 34T and can be had for less than $20 new on ebay.
07-25-23, 06:03 PM
Replies: 118
Views: 6,962
Posted By kommisar

700c, steel and cantis sounds like a surly cross...

700c, steel and cantis sounds like a surly cross check to me...
07-16-23, 10:13 AM
Replies: 103
Views: 5,646
Posted By kommisar

I think the greatest mechanical group was the...

I think the greatest mechanical group was the shimano 950 xtr group. The rd-m951 is a work of art. Runner up would be the suntour cyclone mark I stuff. Fantastic.
07-15-23, 04:47 AM
Replies: 24
Views: 8,040
Posted By kommisar

Another user piggybacked a couple of days ago on...

Another user piggybacked a couple of days ago on the old thread with essentially the same question as the OP, so new answers are timely.
07-15-23, 04:23 AM
Replies: 24
Views: 8,040
Posted By kommisar

Here is an alloy .833 adapter: ...

Here is an alloy .833 adapter:

https://www.ebay.com/itm/321296124414
07-12-23, 12:37 PM
Replies: 24
Views: 8,040
Posted By kommisar

I have a bike with a .833 stem. I eventually got...

I have a bike with a .833 stem. I eventually got a .833 threaded to threadless adapter and now use what ever 1 1/8 threadless stem that I want. Now I have a lot of angle and length options.
07-10-23, 07:48 PM
Replies: 8
Views: 386
Posted By kommisar

I would start with this page here: ...

I would start with this page here:

https://www.sheldonbrown.com/speeds.html

When you have something you want to get come back here and the good folks here will reality check it for you...
07-10-23, 07:07 PM
Replies: 37
Views: 1,938
Posted By kommisar

This is why you would go radial on the non-drive...

This is why you would go radial on the non-drive side. If you lace them outside in it has a minor reduction on the bracing angle of the nds spokes. It is an attempt to increase the tension of the nds...
06-27-23, 08:16 AM
Replies: 21
Views: 1,334
Posted By kommisar

I have had a similar problem with a square taper...

I have had a similar problem with a square taper crank. This was not caused by anything wrong with the square taper design but rather mischief of a would-be bike thief. I had my commuter bike locked...
05-28-23, 06:45 PM
Replies: 31
Views: 1,096
Posted By kommisar

The thing I most fear about my vintage bicycle,...

The thing I most fear about my vintage bicycle, is my derailleurs. Specifically I believe that the springs will eventually go bad and cannot be replaced. So buy replacement derailleurs.
05-27-23, 03:33 PM
Replies: 28
Views: 1,068
Posted By kommisar

paddythepeddler on ebay specializes in adapting...

paddythepeddler on ebay specializes in adapting old clamp on gear for oversize tubing. Check out his stuff.

https://www.ebay.com/str/paddythepeddler
03-24-23, 07:15 PM
Replies: 22
Views: 802
Posted By kommisar

jealous...

jealous...
03-03-23, 08:21 AM
Replies: 4
Views: 469
Posted By kommisar

I believe these alloy pulleys from velo orange...

I believe these alloy pulleys from velo orange would work:

https://velo-orange.com/collections/parts/products/grand-cru-sealed-bearing-jockey-wheels-10-tooth
03-01-23, 05:02 AM
Replies: 8
Views: 737
Posted By kommisar

9 speed will work without issue. A 10 speed...

9 speed will work without issue. A 10 speed cassette has a dished large cog (not flat like rest of them) which will require the derailleur to move further inboard when the chain is running on it....
02-22-23, 07:49 PM
Replies: 32
Views: 2,358
Posted By kommisar

I heard that shimano's next electronic grupo does...

I heard that shimano's next electronic grupo does away with the chain and derailleurs completely. They just have a magnetic resistance on the bottom bracket and then a simulation drives the rear hub...
02-08-23, 03:26 PM
Replies: 114
Views: 4,832
Posted By kommisar

I suggest a 350w hub motor in the front wheel...

I suggest a 350w hub motor in the front wheel with a battery strapped to one of the fork legs. This will increase speed without effecting the efficiency of the drive train.
02-06-23, 07:25 PM
Replies: 45
Views: 3,425
Posted By kommisar

I like the sturmey archer cs-rf3 or cs-rk3.

I like the sturmey archer cs-rf3 or cs-rk3.
01-15-23, 07:51 AM
Replies: 9
Views: 478
Posted By kommisar

Looks good. Ride it. It is relatively cheap to...

Looks good. Ride it. It is relatively cheap to adjust your gear range by changing the rear sprocket if you don't like the current setup.
01-13-23, 05:25 AM
Replies: 9
Views: 478
Posted By kommisar

According to this page: ...

According to this page:

https://www.sheldonbrown.com/internal-gears.html

For a 5-8 speed IGH your second highest gear should be ~5.6 development. Since you want a bigger gear, I would adjust...
01-13-23, 05:13 AM
Replies: 663
Views: 22,573
Posted By kommisar

I don't have a problem with people spending a lot...

I don't have a problem with people spending a lot of money on a bicycle. They could spend it on something much more destructive. Plus it keeps driving innovation that eventually improves more...
01-12-23, 10:10 AM
Replies: 329
Views: 10,920
Posted By kommisar

I agree. My favorite thing to do is take my...

I agree. My favorite thing to do is take my stealth ebike on the MUP and greviously drop those luddites riding analog bikes.
01-10-23, 06:41 AM
Replies: 22
Views: 816
Posted By kommisar

Here are some more helpful sheldon brown links: ...

Here are some more helpful sheldon brown links:

Cassette and frame spacing crib sheet.

https://sheldonbrown.com/cribsheet-spacing.html


Cross compatibility of different speed drivetrain...
01-08-23, 09:26 PM
Replies: 82
Views: 4,104
Posted By kommisar

When did shimano become sram?

When did shimano become sram?
01-08-23, 09:22 PM
Replies: 722
Views: 27,784
Posted By kommisar

If you didn't fall for that propaganda about...

If you didn't fall for that propaganda about freewheels you wouldn't need brakes at all. And while we're at it, if you hadn't fallen to that siren song that is pneumatic tires, you wouldn't need...
12-21-22, 05:06 PM
Replies: 20
Views: 751
Posted By kommisar

I find this crib sheet to be particularly useful...

I find this crib sheet to be particularly useful when dealing with drive trains:


https://sheldonbrown.com/cribsheet-spacing.html
12-20-22, 04:08 PM
Replies: 34
Views: 2,386
Posted By kommisar

Isn't bull-****ting about seat tube angles and...

Isn't bull-****ting about seat tube angles and chain stay length what bike forums is all about?
12-20-22, 03:36 PM
Replies: 28
Views: 1,122
Posted By kommisar

This one goes to 11

After hearing all of your great input I have decided to try this little experiment. I am getting an 11 speed 11-25 cassette and an 11 speed chain, will remove the fd and put on a 34T chainring. I...
12-20-22, 04:36 AM
Replies: 11
Views: 555
Posted By kommisar

Does he want to keep 7 speed or is he interested...

Does he want to keep 7 speed or is he interested in getting more gears? If he wants to keep 7, he could get an 8 speed campagnolo ergo shifter and 8 speed campagnolo rear derailleur. These shift a...
12-19-22, 03:23 PM
Replies: 28
Views: 1,122
Posted By kommisar

Since you are not using the normal top 11t cog do...

Since you are not using the normal top 11t cog do you do anything to make sure the lock ring won't unwind due to vibration? I assume the serrations that are normally found on the top cogs are to...
12-19-22, 02:28 PM
Replies: 28
Views: 1,122
Posted By kommisar

On my current friction shifting bike I have...

On my current friction shifting bike I have sl-m700 thumbies and it is two clicks to shift one position on 8 speed. I find that I shift by ear while using friction with ratcheting shifters.
12-19-22, 02:26 PM
Replies: 28
Views: 1,122
Posted By kommisar

1999 era XTR is probably medium gain or 1.7 : 1....

1999 era XTR is probably medium gain or 1.7 : 1. All 7-9 speed shimano sis deraillers (except dura ace) are the same. 7400 dura-ace is high gain 1.9 : 1. 7700 dura ace (9 speed) are medium gain. I...
12-19-22, 11:51 AM
12-19-22, 11:47 AM
Replies: 28
Views: 1,122
Posted By kommisar

Thanks for this. Here are some other data points...

Thanks for this. Here are some other data points I have collected from the interwebs:
...
Showing results 1 to 50 of 156
 


 
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