Questions tagged [mountain-bike]

Mountain bike (MTB) can mean almost any kind of off-road bicycle. Wide knobby tires, flat handlebars, maybe shocks, probably a sturdy frame...

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1answer
63 views

What's the difference between a Shimano RD-M6000 and an RD-M4120?

I ordered some family bikes recently, and all were supposed to come specced with RD-M6000 medium cage rear derailleurs. The first one out of the box has an RD-M4120, which is a cheaper model, as far ...
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10answers
4k views

What aspects contribute most to me being slow on this bike?

So this is my bike (don't laugh). I've had it for about 20 years, still rolls. Lately I've been seeing on Strava or Garmin Connect that I'm just too damn slow vs. everyone else and I don't think the ...
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3answers
178 views

How could hydraulic disc brakes make sense on MTBs and gravel bikes?

This How To Clean Hydraulic Brake Pistons video (Park Tool's Tech Tuesday #104) shows how dust particles can interfere with the proper functioning of hydraulic pistons. Disc brakes have been adopted ...
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0answers
182 views

Rear wheel jerks and wobbles while riding

I bought a Hero howler 27.5T MTB- single speed two years ago. At that time I was 120kg (265lbs) and I hadn't faced any issue while riding cycle. Then I stopped cycling for almost 2 years. I parked it ...
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2answers
176 views

Bicycle for fat man

I want to get a bicycle that can sustain more than 120KGs. I know most of the bikes can sustain a maximum of 120KGs, but how can I maximize that limit? What components should I change in order to make ...
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0answers
91 views

Tip of the shoe prevents unclipping with crank rotated to the rear

I recently got some Crankbrothers Mallet E pedals (standard cleats) and Shimano MW7 shoes for winter. Now I noticed that when I try to unclip with my rear foot the crank arm (Truvativ Stylo 6K, Boost) ...
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1answer
45 views

Chainstay Protector, Will it interfere with rear derailleur gear cable?

I have a chainstay protector wrapped all around the chainstay. Will this affect the rear-derailleur gear cable which on my bike is externally routed?
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1answer
91 views

How to find which quick release to buy

I own a Serious Rockville Hardtail MTB 27.5' bike from 2019. Recently the quick release from the rear wheel got stolen. As the axle is still in place, I was thinking to buy a quick release online and ...
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0answers
54 views

GT Bike model and year?

This bike is being offered to me, but i cant find the model and year pls help! I think it might be a GT Zaskar or a GT Avalanche mustang, but the GT winged logo makes me doubt. Thanks
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4answers
143 views

18 Speed Mountain Bike Single Speed Conversion

As of right now I currently have an Apollo 18 speed freewheel bike (3 Front and 6 Rear) I bought from Halfords but I have decided that I want to convert it into a single speed bike. This is because I ...
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2answers
1k views

Would a heavy fork cause problem when climbing?

I have a MTB which has a 1.600g frame and 2.600g suspension fork. Does being heavy at the front cause a disadvantage when climbing?
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3answers
2k views

Fastest possible drivetrain?

I am looking for the ideal gearing to achieve good speed on a gravel bike when commuting. 2x11? 1x12? 3x12? 10-52? 11-50? How many teeth on the chainring? I know I could go faster if I get a road bike ...
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1answer
74 views

Help with drivetrain decision [closed]

Currently upgrading my old steel mountain bike for commuting. I need some advice on what drive-train to go with. Current setup is 3x7. I will convert to either 1x9 or 1x10 with new rear wheel/hub. I ...
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2answers
98 views

1x7 mtb electric conversion?

I picked up a '93 Marin Bear Valley SE from a vintage store and spent time restoring it (surface rust, old components etc). I was pleased with how it turned out and enjoyed riding it, nice old steel ...
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2answers
70 views

Dropper Seat Post Compatibility - Kona Mahuna 2021

I have a medium Kona Mahuna 2021 (Seat tube length 420mm and seat post diameter 31.6mm) which I would like to fit a dropper post on. The bike is 'dropper ready' with internal routing. I've never had a ...
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1answer
36 views

Can I use an apex 1 crankset with a shimano mtb casette?

I'm building a mullet 1x11 gravel bike with ultegra shifters, slx rear derailleur and 11 speed 11-46t cassette and am now looking for a oneby crankset. The bike will be used in pretty flat terrain ...
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3answers
216 views

Are old bikes good bikes?

A friend is giving me a 2005 Trek 4300. I want to know if this is a strong/sturdy bike for rough trails. Can someone who has knowledge about bikes tell me if this good or not?
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1answer
54 views

How can I un-seize the front suspension on my bike?

I am getting a 2005 Trek 4300 from my friend for free. I would like to fix up this bike so I can get it on the trails. Right now it only has one tire and no chain. He's going to put this bike back ...
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1answer
114 views

Can anybody help me determine what this Cannondale is or is not?

26 frame. Red w/fade to purple paint. Labels; Cannondale F600 Headshok. Letters & #'s stamped bottom of frame as "FL" "11250" "00211" & "5F5W19" These ...
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5answers
248 views

Aluminum or steel for my first mountain bike?

For the past few months I've been planning to buy my first mountain bike. I'm struggling with buying an aluminum bike or a steel one. I recently read that aluminum bikes are as heavy as steel bikes: ...
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2answers
36 views

PROMAX DECIPHER hydraulic brake hose replacement

I have a set of PROMAX Decipher hydraulic brakes and need to replace the hose cable (basically adapt these brakes to another bike and the cables length is longer). I would like to know how to split ...
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2answers
153 views

Road tyres and tubes for a mountain bike

A few years ago, I was given a very cheap dual-suspension 18 speed disc-braked mountain bike. Neither the giver nor I were very knowlegeable about bikes. I use it primarily for riding on the road, ...
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2answers
95 views

One rear cog doesn't shift down

Recently, I have replaced a chain after noticing that the old one gained 0.75-1 percent of elongation. After that everything worked fine, i.e. shifting was consistent and smooth, drivetrain worked ...
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1answer
90 views

1X11 build - align / slip / set up

Looking for advice on my 1X11 set up on a bike I’m (trying to) build: The chain slips off single front chainring, on the inside, when I move into biggest rear cogs (gear 1 or 2). When I align the ...
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1answer
82 views

Which Valve Stem do I need for Bontrager Kovee TLR wheels?

I just bought a Trek Marlin 7 for my wife, and it came with Bontrager Kovee TLR wheels, with tubes inside them. I'm trying to convert them to tubeless, but am having issues finding valve stems that ...
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1answer
569 views

Recently purchased 2001 Trek Navigator 400 for Commuter Bike

I recently picked up a 2001 Trek Navigator 400 with the intention of using it to commute the 15 miles to and from work a few days per week. I currently ride a Raleigh 7 Speed with 27.5x1.95 tires ...
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3answers
414 views

Strengthening the valve hole of a rim during manufacturing

Various technologies(sleeved, soldered, pinned) exist to reinforce the place where the rim makes full circle. A major argument against Schrader valve is it's large diameter weakens the rim. I, however,...
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2answers
79 views

Mountain bike front derailleur compatibility

I recently bought an old youth mountain bike for my kid and may need to replace the front derailleur. It's 3x7 and the rear seems to be Shimano Tourney. The front is also Shimano but I can't tell what ...
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1answer
38 views

Mount Blackburn Cargo Cage on Rockshox front suspension fork

Im trying to find a way to attach one Blackburn Outpost Cargo cage to each side of my rockshox front suspension. Are there any good way to mount them? Thanks!
4
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3answers
486 views

Cleaning a mtb - contamination

I have jsut come back from a ride on my new mtb, it has hydraulic disc brakes, what do I need to know about contamination and cleaning as I need to clean my bike now. Any other tips would be useful to ...
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2answers
77 views

Cant find 1.90 inch tyres [duplicate]

I've bought a second hand bike recently but the back tyre is bald but I can't find the correct size tyre for the back wheel, I've tried everywhere, so my question is: Can I fit a 1.95 in tyre on my 1....
4
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1answer
85 views

Can I use a 42 tooth max derailleur on my 13-32 tooth 9 speed freewheel?

I have a 13 to 32 tooth 9 speed freewheel. I wanted to upgrade my bike by getting a clutch derailleur on it but couldn't find much 9 speed derailleurs with a clutch that were under my budget of $60. I ...
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2answers
815 views

I'm afraid to do U-turns on my bicycle, any tips?

Whenever I try to start doing a U-turn on my bike in the roads of my town (the width of around 2 cars) I feel like I'm about to fall and I stop and just full-stop then turn around with my feet. Any ...
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2answers
390 views

Is there a noticeable difference in the calorie-burning benefits of road vs. off-road cycling?

I monitor my rides using FitBit and Strava. I started out as a full-time road cyclist. However, I've recently begun gravel cycling. My primary purpose for cycling is fitness, in addition to enjoyment, ...
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3answers
498 views

Using a mountain bike rear derailleur with road bike shifters

I am in the market for a new rear derailleur and was interested to find out if it is possible to use a mtb derailleur with road bike shifters and cassette and chain? Would it work without fault? Does ...
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2answers
163 views

21 speed to 12 speed conversion! Is it possible?

I have an entry level MTb with 21 speed gear ratio. I found out that i dont need that kind of complexity while riding. 12 speed seems light and compatible to my riding style. It has Shimano tourney ...
3
votes
1answer
228 views

How to Remove Square Taper Chainring Bolts

I have removed my chainring from my Bicycle, but I do not know how to remove the chainring bolts I have tried using an Allen key but I cannot move it. Do I need a special tool? Here is a photo Any ...
2
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1answer
70 views

Loose self extracting crankset [duplicate]

I have a near new bike only ridden a handful of times, it has a self extracting crankset I believe which uses a pin spanner, the drive side crank is now slightly moving side to side. This isn't ...
3
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1answer
385 views

Do I need to replace my chainring?

Finally replaced the drivetrain on my 2019 yt jeffsy. I replaced the chain and cassette, but seem to be having an issue with the new chain jumping off of the chainring. The new chain is the same ...
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2answers
115 views

Issues with new rear derailleur

Recently decided to replace the rear derailleur on my 2020 Kona Honzo. I bought a 12 speed Shimano Deore M6100 SGS. Also got a new shifter to replace the stock Sram one. Been trying to set it up for ...
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0answers
36 views

Mountain bike Yazoo Fsv 3.6n front derailleur shifter is not shifting under the 2nd gear

My Yazoo FSV 3.6N MTB front derailleur is not shifting under the 2nd gear. When I try to shift down it doesn't go to 1st gear, it stays between 1st and 2nd. I'd leave a video here but I can't.
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5answers
7k views

How to choose a bike for a very tall and heavy person?

So I have wanted to ride a bike for a long time, I do strongman training, I am 6'6 (200cm) tall and kinda fluctuate between 440 - 480 pounds (200-220 kg) depending on what training I am on. We are ...
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2answers
91 views

Any Cranks/Bottom bracket that can replace syncros cranks/BB on a 2006 Santa Cruz superlight MTB?

My left syncros crank was recently backed into by a car. The cranks are 175 mm. The bottom bracket is also syncros brand, threaded, and the size is 68 x 110mm. I have a syncros triple chainring, 5 ...
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1answer
67 views

Warranty nukeproof mega elite 290 carbon M

Does anyone have any info on what the warranty would be for all parts on my carbon nukeproof mega have (bought from chain reaction cycles)? Thanks!
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2answers
104 views

Is it normal for a rotor to move when brakes applied (hydraulic)?

I noticed a movement of braking disc when pressing rear brake and watching on rotor. It was moving about half millimeter. Is it normal for rotor to move minimally?
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0answers
55 views

2nd gear ghost shifts to 1st gear

Initially my bike had a problem with the rear derailleur being able to shift into the spokes. The mechanic said the limit screws needed adjusting. But am still having ghost shifting into first when in ...
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2answers
50 views

Fitting ebike kit, changing rim diameter?

I have a 27.5 inch mountain bike, am wondering if I bought a 26 inch ebike kit would it work with the disc brakes because of the size difference? It's for the rear wheel.
0
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1answer
59 views

MTB shifts into spokes

When you shift into the lowest gear at the back it seems to shift but I noticed you can press the shifter one more time which makes the jockey wheel go beyond the back of the cassette. What is the ...
2
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2answers
154 views

How can I remove my stuck freewheel?

I have been trying for days to remove my freewheel using a freewheel tool. I have been using an adjustable spanner for now but it still is not moving. Am I not strong enough? Or is there another trick ...
1
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1answer
88 views

Are the HG-50 and the HG-81 Shimano cassettes interchangeable?

I run two different eMTBs - a hardtail KTM Macina Action (2014), and a full-sus Scott E-Genius 730 (2017). In rear cassette terms, the bikes were supplied with a Shimano HG-50 and a Shimano HG-81 ...

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