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Questions tagged [replacement]

Replacing parts, compatibility with existing or new equipment, finding suitable substitutes for old OEM parts, and so forth.

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6 votes
3 answers
524 views

Replacing pulley wheels on a RD-m3100 with non original parts. Can I use other Shimano pulley wheels?

I need to replace the pulley wheels on my rd-m3100. The T-pulley is close to worn down (ninja-starry), even though the G-pulley still has some life left. Unfortunately the original replacement part, ...
0 votes
1 answer
37 views

Shimano 105 thru-axle freehub FH-R7070: freewheel body servicability and separately orderable?

I'm searching for a replacement freewheel body for my bike. The only marking on my freewheel body is 18-d-3 11S Internet search did not yield useful results for this string. Searching for Shimano ...
1 vote
2 answers
105 views

FSA B3155 bottom bracket compatible replacement

I have Orbea orca m35i with Shimano cranks (24mm). During bottom bracket bearings replacement, the cup got damaged. It says "FSA B3155" on the cup, FSA support said this would be a ...
1 vote
1 answer
113 views

Bike repair put a 700-20 tire on my 700-25 road bike, should I replace it?

I had a flat tire in my rear wheel, so I took my road bike to the repair shop. They had to replace both the inner tube and the tire. After using it for 2-3 times. (mostly just going in to the gym or ...
2 votes
0 answers
30 views

Square taper with 15.5mm end?

I got a Star Trac NXT for £15 for some indoor fitness but it's missing its left crank arm. I thought to myself oh I'll just throw on a standard steel crank arm and I'll be good to go BUT it doesn't ...
4 votes
1 answer
146 views

Tire tube is preventing tire from sitting properly

The part without the valve fits nice. The part with the valve bulges out a bit. I deflated them and moved the tire aside. It looks like the tube is preventing the tire from sitting correctly. I ...
2 votes
2 answers
123 views

Finding a battery for an old e-bike

I have an old Raleigh stow e way folding bike e-bike but sadly the battery has died. I’ve tried to replace it but can only find used ones on eBay which might not last long. Battery is labelled: Li-ion ...
6 votes
3 answers
2k views

Fix/replace worn-through side-button on Garmin Edge 520

My cycling computers "down" sidebutton has worn through due to my bad habit of only skipping through data pages using the lower of the two buttons. Rubber has perforated and it fell off ...
1 vote
0 answers
123 views

What chainring can replace Shimano SG-X 10S 34-F?

It seems my smaller chainring Shimano SG-X 10S 34-F (a Tiagra chainset of 2019 or so) in worn out, but I cannot find exactly the same one in stores. Are there any modern parts that can be used as a ...
6 votes
4 answers
1k views

Fat tires on a Rhoades Car quadricycle bike?

Ok, we have a Rhoades Car 4 wheel bike. It has a top, fenders and the works. It currently has 20 inch tires on it. Years ago we contacted the company to upgrade to 26 inch tires. We never got around ...
2 votes
2 answers
273 views

How do I find more reliable equipment for my Shimano CS-M4100, 11-42?

My girlfriend has a Raymon HardRay E-Nine 6.0 2020. She already rode 4000 km with it, basically she drives a lot and its not getting less. The bike reached the point where the chain is slipping all ...
4 votes
1 answer
141 views

What's the power supply for a Saris CycleOps PowerBeam Pro turbo trainer?

A friend is moving, and gave me his old turbo trainer. I've got the body assembly and a head unit, but he couldn't find the matching power supply. It has a standard 5.5mm barrel connector, but there'...
2 votes
1 answer
94 views

Old bike: replaced rear axle but the tire goes off the axis when I get on it

I just broke and then replaced my rear axle on an old timey race bike I bought online. Everything seems to go smoothly when the bike is up on a stand or on at my side, but once I get on it and try to ...
1 vote
1 answer
172 views

I have a Triban RC100 (Women's bike, small) what size bottom bracket does it have?

I recently crashed my bike and bent the stock crankset so I am thinking of buying a new one and replacing it but for that I need to know what size bottom bracket comes with a stock Triban RC 100 women'...
1 vote
1 answer
93 views

Replacement for VP-BC73E Bottom Bracket

I cannot find my bottom bracket online anywhere. It's called "VP-BC73E ". However, I can find loads of "VP-BC73" (E is missing). Would it still fit/work? I found this information ...
6 votes
2 answers
885 views

Is it important to cover the brake lever apparatus with a protective hood?

This question may just be too basic, but was unable to find a direct answer. People seem to assume that a brake lever hood* is a given, but I'm wondering if it's necessary or really does all that much ...
3 votes
2 answers
217 views

Will a New Horizontal Stem Riser Support a Front Child Seat

I recently bought a Lectric XPedition. My goal was for it to transport my 3 kids, 2 in back and the youngest with a front child seat. When I received the ebike, the collapsible handlebars made that ...
5 votes
2 answers
179 views

Mavic Helium clincher wheels: Replacement Spokes

I have a Mavic Helium clincher wheels and a broken drive side spoke. I need a new one (and would be happy to buy a couple of them including non-drive side) but everywhere I look it seems I would need ...
0 votes
0 answers
33 views

I need to replace my tyre on my hybrid - 27.5x1.95 on the current tyre but struggling to find this size Is there a range of sizes that might fit? [duplicate]

Complete novice here and not sure if the tyre has to be replaced like for like or if there is some wiggle room on the width (1.95) aspect?
1 vote
1 answer
270 views

What do I need to adapt a Hope Pro 4 to a Boost 141 frame?

I have a 2021 Trek Roscoe 7 and I’m looking to buy a rear Hope Pro 4 hub. My Trek comes stock with a Formula DC-2241 rear hub, alloy, 6 bolt, Shimano 8/9/10 freehub, Boost141, 5mm QR. The rims are ...
4 votes
1 answer
404 views

How to remove and replace wire pins from axle?

I have a Kent adult tricycle. It has a band brake attached to the rear axle. The brake pad is old and no longer grips, so I need to replace it. Apparently I can't just replace the pad because it is ...
3 votes
3 answers
1k views

Find replacement battery for this e-bike

My ebike battery totally died today. I can't find the model number for the battery as it is not written anywhere. Here are the pictures:
5 votes
2 answers
823 views

Want replacement shifter hoods - how do I find the model of my shifters?

I'm looking for replacement shifter hoods for my bike - the current ones are original, and the bike's 13 years old. I know my bike's a 2010 Specialized Roubaix Expert. I've got the serial number. It'...
2 votes
1 answer
907 views

Broken Shimano FD-R453

I have a Shimano FD-R453 front derailleur that needs replacing. 50t and bottom pull with a 31.8 clamp. There are three gears in the front and 9 gears in the back. Could somebody help me with getting ...
-2 votes
1 answer
118 views

Which chain replacement to use for Cube Aim Race?

Bike is "Cube Aim Race", 29 inch wheels. My chain is so dirty and got rusty, I am bothered to clean it. I actually put a lot of effort into cleaning it, and now I am considering to REPLACE ...
0 votes
1 answer
62 views

Trek crossrip ltd 2015 bottom bracket model

Hello I have a Trek Crossrip ltd 2015 gravel bike. The frame is alpha aluminium 100 series and the bottom bracket is Hollowtech II. What bottom bracket should I replace it with?
8 votes
3 answers
501 views

Replacing crank/spider on belt drive bike (stripped pedal hole)

Edit: The bike is in a place with good mechanics but few shops. As I'm visiting the USA soon, I was thinking perhaps of getting the parts there and having someone competent locally do the repair. I ...
1 vote
1 answer
263 views

Advice on switching from a Continental belt drive to a Gates one

For context this bike is fitted with a Continental CDS drive belt, but the belt broken and as far as I can tell Continental stopped producing these belts so I can't get a replacement and they're also ...
4 votes
2 answers
967 views

What kinds of rear wheel hubs are compatible with my MTB?

I am looking at a rear wheel replacement. I have a Scott Scale 980 with a standard wheel on the rear. Will I need a longer freehub to interface with the wide 12 speed cassette? Or are there general ...
2 votes
2 answers
453 views

How to measure sealed headset bearings angle?

I need to find a replacement headset for an integrated system "IS". I can get the required dimensions by removing the fork and taking headtube and steerer tube measurements by using a ...
1 vote
2 answers
92 views

Difficulties assessing whether drivetrain is worn

I've been a hobby mountain biker for a couple of years now. My bike is getting older and older (10+ years, still 26 inches) and I would like to do more maintenance jobs myself since it is not worth ...
1 vote
1 answer
149 views

What are the dimensions of a Trek Marlin 7 rear wheel quick release skewer?

My Trek Marlin 7 is size large and has 29-inch wheels. I want to replace the broken quick release skewer of the rear wheel and I need help finding a suitable replacement.
4 votes
3 answers
661 views

SRAM GXP crank partially stuck in bottom bracket

I (unfortunately) have a SRAM Apex GXP crankset that I need to replace after less than a year of use because it's garbage. But I can't get the crankset out of the bottom bracket. I've taken the bolt ...
5 votes
1 answer
350 views

Why do the ISO/ETRTO numbers not match the English measure on my Tires?

Given: A flat tire Tire size 47-507, 24 x 1.75 I want to replace both the tire and the tube. But in the shop it's only available 44-507, 24 x 1.75. The tire size of 24 x 1.75 is common to both my ...
9 votes
3 answers
5k views

How to replace Avid BB7 brake pads in "new" calipers?

How do you get new BB7 pads to install in the new caliper bodies? By "new" I mean the ones with the spring steel "cap" on the opening at the "top" of the caliper unit (the side opposite the axle). ...
2 votes
2 answers
1k views

What size replacement brake pads for the Brompton?

What size brake pads are needed to replace the brake pads on a Brompton bicycle? The brake pads on my Brompton bicycle are getting thin, and I would like to buy a replacement pair. There is no ...
5 votes
3 answers
659 views

How to remove the pin on the lower end of the shift cable, to replace the derailleur

I need to replace the rear Shimano XT 7100 derailleur what broke in two at the base. It is attached by the single screw only but there is a metal pin fitted over the tip of the gear shifting cable. ...
4 votes
1 answer
107 views

Old Colner (Campagnolo) frame - What bottom bracket do I need?

Just picked up an old steel Colner frame. Don't know model or year. Tried to put my Sugino bottom bracket in but it's too small. The width of the frame where the bb goes in is 70mm, and internal ...
4 votes
2 answers
2k views

Replacing stem bolts

Rather than replace the stem on every rusty bike I come across, I want to replace some stem bolts which are rusted, cheap original ones. I know they can differ in size a bit so I would get some that ...
3 votes
2 answers
251 views

I need 27 x 1 1/4" sew up tires

What is the new teminology for 27" x 1 1/4" sew ups? There are so many new sizes. It seem like 32-630 would be right, but I can't find any that arn't clinchers. I need new sew ups for my ...
28 votes
8 answers
124k views

When should you replace tires after getting a flat?

A nail punctured my rear wheel tire today while riding. My question is, how do you know if you need to replace a tire or simply repair it with a tube repair kit? The hole looks pretty nasty. The cap ...
2 votes
4 answers
2k views

Can I replace 26 inch tires with 29 inch tires on my Giant Sedona?

The reason I am asking this question is I have pre-ordered a "Switch e-bike Conversion Kit for my new Huffy Rock Creek Mountain Bike that has 29 inch tires. The Swytch system will ship with a ...
5 votes
1 answer
15k views

Putting wider wheels on a hybrid bike

I've recently had a bike donated to me by a friend so I can start commuting to work. It's a hybrid style bike, and uses 700x32C tyres. My ride to work is along a pretty bumpy, muddy canal path and my ...
0 votes
1 answer
1k views

Can I replace a 26x2.0 tire with a 26x2.1 tire ? (Slightly wider) Also what size tube would I use? [duplicate]

I have a bike that’s 25 years old. First flat! Current tire is 26x2.0… can only find a 26x2.1 … will the slightly wider tire be ok? Also what size tube do I use? (26x2.1? … sized same as tires are?) ...
1 vote
1 answer
744 views

What is the largest cassette I can fit on a Canyon Grizl CF SL 7 1by?

I'm considering buying a Canyon Grizl CF 7 1by, but I do a lot of bikepacking in hilly areas, so I'd like to put on a larger cassette to lower the minimum gear ratio. What is the largest cassette that ...
1 vote
1 answer
298 views

Broken screw thread on GRX 800 crankset

I made my gravel-dream bike few month ago by hand. I followed all the user-manual sheets from Shimano in order to properly mount the GRX 800 crankset and the pedals on it. I respected the tightening ...
4 votes
2 answers
1k views

How/where can I find replacements for these 'wheel bearing caps'?

I have started the restoration of a bike picked up from the bins. The bike has taken some abuse. The rear wheel axle was broken, same for the two "bearings" caps or dust seals. I am not sure ...
3 votes
1 answer
2k views

How to identify model of Shimano levers/brifters?

Sticky Shimano Brake Hoods How do I find out what brake hoods I have on Shimano levers? Mine have become tacky and sticky and adhere to my gloves! I have Di2 Ultegra and not sure if the levers are ST-...
1 vote
1 answer
849 views

Replacement chain for old Shimano 3x7 STX

I have an old Raleigh MT-200 (which I love as if it were the Old Faithful), with a Shimano STX set.. As per the chain checker tool, I need a replacement chain. I found mostly that Shimano CN-HG40 may ...
7 votes
2 answers
3k views

Can Shimano Ultegra R8000 shifter be compatible with mechanical disc brake?

Im new in road bike and Shimano product as well. I plan to own a China's make product which is Twitter R10 and i wish to change the existing groupset to Shimano R8000 groupset. Here the problem ...

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