Shimano brand bicycle components. (No need to use if Shimano is an incidental part of the question.)

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453 views

How to use bicycle gear ratios

In a 21 speed bicycle, which is the fastest gear ratio. Smallest on front and largest on back or vice versa?
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2answers
3k views

What components are required to upgrade from a 14 speed to 24 speed?

I made the mistake of buying a 14 speed bike... I live in WA so it's hills everywhere you turn, took it for a spin yesterday and while on flat surfaces it felt great, but taking hills or going down a ...
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2answers
1k views

How do you tighten Shimano disc brakes?

I have just brought the Trek Fuel ex8 (on Christmas) and already the back brake is squeaking. Also both the front and back are not very sensitive and are not stopping the bike very well. I've looked ...
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2answers
87 views

Why is Shimano 105 5700 (10-speed) is more expensive than 105 5800 (11-speed)?

Why is Shimano 105 5700 (10-speed) is more expensive than 105 5800 (11-speed)? Does someone know?
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2answers
102 views

Shimano Deore XT: is 9-speed no longer continued? (Europe)

For an upgrade I'm trying to decide whether to change to 9-speed or 10-speed cassette, chain, derailleur, shifter and crank. On the european Shimano website there are not many words about 9-speed ...
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2answers
8k views

Shimano Compatibility

I'm quite new to upgrading parts, and trying to put together a Cyclocross / Touring bike and getting quite confused about compatibility. Can I use 10 speed Tiagra Sti shifters with triple Deore 10 ...
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2answers
4k views

Shimano 105 5600 derailleur compatability with 105 5700 11-28 casette

My current cassette is a 105 5600 12-27 the front is a 105 5600 53/39. I want to go compact so will the Shimano 105 5600 rear derailleur support the 105 5700 11-28 cassette?
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1answer
558 views

Shimano Hollowtech II bottom bracket: milling the frame necessary?

In a bike shop I recently asked for bottom brackets. The seller said, when choosing a Hollowtech II bottom bracket (like SM-BB70), compared to Octalink/square taper bottom brackets the outer (lateral) ...
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1answer
339 views

Shimano DA9000 polymer cables

It's time to replace my shift cables on my road bike and I'm thinking of spending the extra and investing in Shimano Dura Ace 9000 polymer cables. Has anyone experience of these? I'd appreciate your ...
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2answers
270 views

I need to change my bike from UK to US Spec

I bought a bike from the UK. The brakes and shifters are on the opposite sides. I want to change it so the front brake is on the left and the rear is on the right, Same thing for the shifters. I ...
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2answers
268 views

Truvativ Crank housing

Im repairing a friends bike and changing the crank. I have removed it and want to find a replacement The removed item is Model: BB-06-PSPL - 113/68 Im wondering if there is a replacement Shimano ...
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1answer
86 views

Shifter clicks in but chain stays on the largest cog, when riding

I am able to change (click through) the shifter but the chain stays on the largest cog and does not move (This happens only when riding) but the gears shift as usual when the bike is stationary and I ...
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69 views

Bottom bracket creaking

I replaced my bottom bracket with a Shimano 113mm cartridge. Now 3 months later its making a creaking noise; the sound goes when free wheeling though. Do l need a new cartridge?
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1answer
593 views

Shimano Alivio M4000 vs Altus M370 shifters

I'm planning to upgrade my shifters to Alivio M4000. My old shifters are Altus M370. My question is will this make a significant differrence on my shifting? I'm running Altus M310 FD with Alivio M4000 ...
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2answers
258 views

Shimano Gears won't shift

Basically when pushing the button to shift gear I can only get one speed up and one speed down. I tried adjusting derailer and the tightness on cables but it makes no difference. Figured I'd make a ...
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1answer
166 views

Shimano FC-M521 middle chainring replacement

What exact torque should be applied to secure the double gear fixing bolt (Y-1FM98020) ? And what tool is usually used to fix the nut without damaging it while tightening the bolt?
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3answers
757 views

Can I change from short to long derailleur to increase cog size

I am have a tiagra 11-25 10 speed cassette with short cage. I am a poor climber and looking for extra gear; I would like to go 11-32 for this year until my climbing improves, will the short cage ...
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2answers
1k views

Shimano Sora vs higher range brake pull ratio

I've just upgraded my commuter bike (old Trek 370) to the replaced components from my main road bike (originally 09 specialized allez - new head and handle) and found the brake calipers aren't long ...
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3answers
937 views

Shimano 105 brifters - rear shift jumps multiple gears

I have a Specialize Roubaix that's about 10 years old with the Shimano 105 component set. I've started to develop a problem in the rear derailer where when I shift to a higher gear/smaller cog, the ...
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2answers
489 views

Fixing broken STI shifters - plastic gear cable surround

As pictured, after knocking over the bike I've broken one of the plastic surrounds where the gear cable enters the front derailleur shifter. Shifting between the lower two chainrings still works, but ...
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1answer
155 views

Wobbling on Shimano Nexus 8

My rear wheel has a Shimano nexus 8 internal gear shift. i noticed some wobbling on the axis recently. that means there is a little bit of play when i try to twist the axis sideways respective to the ...
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1answer
213 views

Where can I find a Shimano cs50 stopper fixing bolt?

Somehow I lost a single 'stopper fixing bolt' on my down tube cable stop. I have a set of Shimano sm-cs50 outer down tube cable stops, and I don't want to buy new ones because I only need one bolt. ...
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1answer
262 views

Combination of different Shimano braking components

For a daily city bike i want to combine some older Shimano Components. Is it possible to combine a Shimano XT V-Brake Lever (BL-M739) with a Shimano 105 SLR Front brake or are there any things i have ...
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3answers
2k views

Hydraulic Brake Loud Noise and Vibration

I have a shimano br-m446 installed in my MTB, i recently replaced it with new pads, my problem is that it is squealing so bad, with a mild to moderate vibration during braking in downhills. and it's ...
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4answers
1k views

Anyplace sell bolts for SPD cleats?

I have more problems with those stupid things getting stripped than you would believe. (Just ruined a shoe trying to get a stripped bolt out.) Anyone know if I can buy just the bolts, rather than ...
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4answers
2k views

“Clacking” noise coming from drivetrain

I have a 2005 Specialized S-Works Tarmac with Dura-Ace components and Mavic Ksyrium SL wheelset. I get a "clacking" noise coming from the drivetrain area only when pedaling forward. I say ...
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1answer
823 views

swap Shimano Alivio gear indicator for cover plate

I want to move my brake levers and gear shifters around a bit. The problem is my gears (Shimano Alivio, bought 4 years ago) have a large gear indicator on it. This is meaning that either the brakes ...
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1answer
48 views

What Size Screw Holds the Up and Down Shifting Levers on Ultegra Shifter?

There's a screw on the back of my Ultegra (circa 2000) shifters that holds the down shifting (on the right side) inner lever, to the up shifting outer/longer lever. I've long struggled with it ...
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1answer
238 views

Can I convert from a 52/42/30 crankset to 50/39/30?

I need to update my 9 speed triple crankset at 52/42/30, and those combinations seem difficult to find when I'm also looking to upgrade. A more common teeth combination seems to be 50/39/30, but I'm ...
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2answers
2k views

Is the 9-speed Sora crankset compatible with 105 11-speed chain?

I'm thinking of upgrading my bike, which has a Sora 9-speed system on it (50/34 chainset). The upgrade is for esthetic reasons - i simply like the look of the internal cable routing. That being said, ...
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2answers
225 views

The crank arm slips when pressing hard on pedals with Shimano Nexus

I have replaced my wheels with a Shimano Nexus 8-speed internal gear hub set but I may have had the problem before the change. When I push down relatively hard on the crank arm for example starting ...
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1answer
158 views

When did Ultegra shift from 9 to 10 speed rear cassettes?

I'm looking at a used Trek road bike for my daughter. I found an aluminum frame, carbon fork bike with 105 shifters and an Ultegra 9 speed rear derailer. I'm trying to figure out how old the bike is ...
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1answer
1k views

How to fit BB bearings to install Ultegra Crank on road bike Wilier Cento 1

I've bought a used Wilier Cento 1 carbon road bike frame (not the new Cento1SR, but the previous model). Now I would like to transfer all Ultegra 6700 groupset components from my existing bike to it. ...
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1answer
92 views

Merida Matts TFS 600 original chain lube [closed]

What lubricant does the chain of a Merida TFS 600 bring from its factory? Thanks.
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251 views

Specialized Rock Hopper (1987) - Service

I was wondering if anyone might have a service manual of some description for a vintage Specialized Rock Hopper(1987 - Yellow)? I have googled this for hours and hours and have tried contacting ...
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1answer
3k views

Changing cassette from 8 to 10 or 11 to meet the Shimano 105 5800 groupset

I upgraded following parts to Shimano 5800 (front and rear derailleurs, crankset, chain, STI shifters). The last thing left to replace is 8 speed Shimano CS-HG51 cassette. Unfortunately I cannot index ...
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1answer
69 views

Old STI 105 shift lever fell off

Hello, While riding home last night, my brake lever fell off. It's an older item on an older bike. What's the process to re-attached one of these?
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1answer
254 views

Possible Broken Shifter

My right Shimano shifter is now loose and clicking it doesn't do anything to the rear derailleur. I've checked the derailleur and it still works fine. How can I fix the shifter? Edit: It's a road ...
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2answers
5k views

Can I change my 7-speed rear derailleur to an 8-speed?

I bought a 2013 Cannondale Quick 6 Hybrid for my daily commute almost exactly a year ago, and I'm looking to give it some upgrades. It currently has a 7-speed Shimano Altus derailleur, and I was ...
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1answer
1k views

Partially disassembling Sticky Shimano STI shifter for service

There are a few questions floating around regarding sticky STI shifters and the standard procedure seems to be to flush with a load of WD-40 and relube with aerosol grease or similar. My set is ...
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1answer
519 views

Replaced faulty Shimano twist shifter but front derailleur still won't catch 3rd

I have one of the ubiquitous Wal-Mart-sourced Chinese Kent bikes, badged as a "GMC Denali." It came with the Shimano RS41 3x7 twist shifters. The front shifter got to where it would not physically ...
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1answer
342 views

Peugeot PX-10 with Shimano 105 Triple with BB-6700

Upgrading my french PX-10e with shimano 105 cranks. What bottom bracket can I use with this 68mm bottom bracket with french threading? Is there a threadless BB available?
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1answer
662 views

Shimano rear hub body compatibility

My free hub body has cracked and im looking to replace it. I have discovered it uses a 14mm hex key to remove. I cannot find a freehub body for sale that matches m785. Will a "m760-m765" body fit my ...
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1answer
727 views

Shimano Chainring Set

I have a Shimano Altus 8-speed on my hybrid/commuter bike. I have to put in a new cassette and a new chain as well and looking at the teeth of the largest chainring cog in the front, it looks like the ...
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1answer
1k views

Change my Shimano SIS rear derailleur of 7 speeds to a better one?

I recently broke my rear derailleur of my road bike it was a Shimano SIS 7 speeds, so I am thinking if I can get a better one like a sram or deore or I don't know. Thank you for your help.
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1answer
782 views

How is the quality of carbon wheelset from taiwan?

Recently I read from some websites, it sells taiwanese carbon wheelset, How is the quality of the carbon rim, spokes and hub from those wheelset made in taiwan ? I didn't see any brand name, so it's ...
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1answer
463 views

Is SRAM Apex crankset compatible with 6 speed chain and rear cassette

My bike's parts are in need of change and I wanted to do this in stages. Currently it has shimano parts based on a triple mountian bike front crank and derailleur and six speed rear cassette and ...
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0answers
59 views

shimano 105 brake/shifter won't move under tension

When I tension the cable normally the shifter won't move. With very little tension on the cable it will tick as normal. Any idea what could be wrong? Is it reasonable to try to repair it, or is ...
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2answers
780 views

Upgrading a Specialized Sirrus 2015?

Not having biked since I was a kid I went ahead and bought a Sirrus 2015 (the base model) for commuting 2x a week (~100 km weekly total) with a view to do 3-5 days. I've done about 1000km on it so ...
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101 views

Adjusting Shimano STI Brakes

I just bought my first bike with Shimano STI Shift/Brake Levers. So far, I really like the feel. I cannot, however, figure out how to tighten the brake cables. I can find the barrels for tightening ...