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Questions tagged [1-by-x]

1-by-x is the tag for discussions of a transmission with a single-front chainring, from 1-by-5 or lower, up through 1-by-10, 1-by-11, and 1-by-12 and beyond. 1-by-1 is a special case, see [tag:singlespeed] instead.

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Rear derailleur won't shift into easiest gears

I recently bought a used bike with a SRAM Force 1x drivetrain. The bike came with a medium-cage Force 11 speed rear derailleur and a fairly small cassette (SRAM PG-1130, 11-36t). I wanted easier gears ...
GOG's user avatar
  • 1
8 votes
3 answers
944 views

How artificial is the lack of 450%+/50t+ gearing on lesser 1x groups?

ESSA, CUES, Advent, Advent X, Acolyte, Sword, and other sub-12-speed low-end groups are all range-impaired compared to what you can get by spending more. Extend it out to 12-speed and there's Eagle SX,...
Nathan Knutson's user avatar
4 votes
1 answer
372 views

Will a 10 speed chain perform adequately on a Shimano CUES 1x chairing?

Situation: 10 speed Shimano hybrid/mountain straight bar shifter, 10 speed Shimano mountain/hybrid derailleur and 10 speed Shimano chain. The person is looking for a 1x crank. Shimano CUES crank seem ...
SuperBab's user avatar
  • 509
6 votes
3 answers
2k views

Does a 3x to 1x conversion make sense for this bike?

My daughter was given a 26" hardtail with a slightly weird setup to use as a utility/commuting bike by a guy whose hobby was to build up bikes from old but unused parts... the crankset & ...
Saes's user avatar
  • 163
4 votes
2 answers
854 views

Compatible derailleur/hanger and going 1x

So the green Kona dew plus is my bike. It's an 8-speed with a 11-34 cassette. It came factory with an Alivio 9-speed derailleur. I need to upgrade the rear derailleur because I got hit by a taxi. My ...
Daniel's user avatar
  • 101
0 votes
0 answers
53 views

Chain slipping at specific chainring angle

1x11 road bike suddenly starts “slipping” gears without fully jumping gears. I noticed that, only when pedaling backwards in the bike stand, it happened in 180 degree intervals at a specific part of ...
Jake's user avatar
  • 1
0 votes
1 answer
112 views

Lateral play in Crankset

I'm converting a ~2006 Scott Reflex to a 1x drive train, following the instructions on this video: Convert From Square Taper to Hollowtech II Bottom Bracket/Crankset - RJ the Bike Guy However I am ...
mapface's user avatar
  • 289
5 votes
2 answers
2k views

Can I swap an SGS cage on a Shimano RD-M8100 having a GS cage?¹

It's been difficult to locate a new XTR M9100 or XT M8100 with the SGS (long) cage from the few reputable U.S. dealers I buy from where Shimano will honor their warranty. The GS cage versions are ...
Jeff's user avatar
  • 11.3k
2 votes
3 answers
5k views

Which is best combination for my 34T chainring, a 11-42t or 11-51t cassette

I am a newbie enduro rider and also i love riding rough terrain uphills, my question is which set of cogs will be more efficient on my riding dicipline. 11-42t or 11-51t 11 speed cassette. Also, I am ...
larp's user avatar
  • 133
2 votes
2 answers
235 views

1x12 chain stability on chainring

Aside (Trivia #1): The concept of offset just crept into the standard chainring jargon. When were chainrings with offset introduced? Context: Traditionally the teeth of a chainring were on the same ...
Sam7919's user avatar
  • 10.3k
3 votes
2 answers
331 views

11-36 11spd Cassette with Shimano RD-M8000-GS?

I'll try to be concise here, but lots of numbers coming your way... Currently running Shimano 1x11spd, 11-46 cassette with RD-M8000-GS rear dr. The three lowest sprockets are -32-37-46. The derailleur ...
Bob's user avatar
  • 31
1 vote
2 answers
3k views

Maximum recommended cassete size for 26 inch wheels

Hello I was looking to upgrade my 2011 Specialized Stumpjumper Hardtail comp to a 1x drivetrain. 11 speed Shimano deore M5100 caught my eye with its low price and wide range (max 51 tooth cassette). ...
KarelPrdel's user avatar
1 vote
2 answers
10k views

Understanding SRAM chain sizing guide

I'm having trouble understanding the latest SRAM chain sizing guide. I run a 1x11 on a full suspension bike (not eagle). You can see in the image there two scenarios for chain overlap. They have the ...
Techlands's user avatar
3 votes
1 answer
2k views

Chain length when upgrading chain ring

I currently run a 1x11 with a 30t chain ring. I'm upgrading to a 32t chain ring and a new chain. The cassette will be the same. Would I be correct in assuming I need to be +2 links on my new chain?
Techlands's user avatar
4 votes
1 answer
226 views

Gravel derailleur advice

I have a gravel bike with the following 1X set up: FSA Omega Megaexo crank, 40T Sunrace 11-46 CSMS8 cassette Sram Apex1 11 spd derailleur Sram Apex 11 speed Double-Tap shifter I would like to change ...
Markb's user avatar
  • 151
4 votes
2 answers
2k views

Adding a second chainring to a 1X

I have a 1X gravel bike with an 11-46 cassette and a 40T chainring. This gearing works for most of my riding but there are times when I'm doing some serious climbing that it would great to have one or ...
Markb's user avatar
  • 151
2 votes
1 answer
551 views

Chain pops up while backpedaling in highest gear

Backpedaling on highest gear (11t) causes chain to pop up/out off at the front top part of the smallest cog. The bike and all components are very new and stock. This is a 1-by Shimano GRX Drivetrain. ...
digitopo's user avatar
3 votes
2 answers
562 views

Shimano Deore 11s derailleur and shifter with a 9s casette 11-46t (Sunrace)

I was questioning if can I fit an 11s Deore derailleur with shifters to a 9s 11-46t Sunrace cassette? I've got the doubt because I need to change my derailleur to one that can tolerate up to 46t ...
cristian vargas's user avatar
4 votes
3 answers
1k views

Can you use a shimano Tourney Rear derailer with a 1 x 11 (11- 52 ish) sprocket?

I'm trying to upgrade, but the Shimano Deore is too expensive... The problem with the other brands is that their rear derailleurs does not have good tension... so can I use a Shimano Tourney in a 1 x ...
Kelvo's user avatar
  • 41
6 votes
7 answers
2k views

Does a bike-stalling speed exist? [closed]

Planes can stall. A plane maintains lift through speed. If the speed drops below a threshold, the plane stalls and begins a downspiral. Now that many 1x modern bikes are discarding front derailleurs, ...
Sam7919's user avatar
  • 10.3k
0 votes
1 answer
387 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 ...
user3000's user avatar
1 vote
1 answer
274 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 ...
gecko115's user avatar
1 vote
1 answer
346 views

Has anyone set up an 11sp ZTTO 11-52 cassette with an 11sp XT SGS and 11sp XT shifter?

I had 1x10 setup with a 10sp XTR shifter, 10sp Sunrace cassette (11-46) and an 11sp XT SGS derailleur and it worked very well (with the limit screw on the mech adjusted). The crank is a 32t RaceFace ...
Adam Hey's user avatar
  • 111
5 votes
1 answer
5k views

Shimano RD M5120 and 10 / 11 speed compatibility

I thought the shimano mtb 10 speed is completely separate system and isnt compatible with anything else. However now there is a 10/11 speed RD - the RD-M5120 SGS. I was wondering how does this work. ...
jednorukypilot's user avatar
1 vote
2 answers
552 views

Will a 11-speed cassette fit my Giant SRC 3 frame (~2007)

I would like to upgrade an older Giant SRC 3 (~2007). Having a very limited experience with bike mechanics, how will i find out whether a 11-speed cassette will fit the frame and or the wheels?
loukote's user avatar
  • 71
2 votes
2 answers
2k views

Replacing 1x SRAM chainset with a Shimano chainset

I've just got a Genesis Datum 2019 bike on clearance. The spec wasn't exactly what I would want—for a start it has SRAM rather than the Shimano we have on other bikes in our household—but more ...
user7761803's user avatar
2 votes
2 answers
1k views

XT 11 speed derailleur (RD-M8000-GS) rubbing 46T cog with b-screw all the way in?

I've broken my rear derailleur so I've decided to upgrade from my 2x10 to a 1x setup. For that, I've initially bought: Deore XT 11 speed derailleur RD-M8000-GS (I've read it can work with 10s, but ...
nandilugio's user avatar
0 votes
1 answer
1k views

SRAM Rival 1x: Hestitant shifting in middle of cassette when going to larger cogs - causes?

I have a few months old bike with SRAM Rival 1x. I have changed the cassette (to get closer gear spacing) and chain and can get the rear derailleur to shift almost perfectly swift and accurate both ...
agibsen's user avatar
  • 181
7 votes
6 answers
5k views

I am putting drop bars on one of my MTB Shimano 10 speed 1x Deore. I am looking for a road hydro shift lever

I will be putting road drop bars on one of my mtb's for this coming winter as a project that has Shimano 10 speed 1x Deore. My goal is to "simply"🙈😆 have road shift levers and hydraulic ...
Jim's user avatar
  • 97
8 votes
1 answer
3k views

Derailleur can't shift to 51-T sprocket. Deore CS-M5100 + RD-M5100

ISSUE: When attempting to shift to the largest cassette sprocket, the side of the derailleur cage contacts the 51t sprocket, so the chain is not able to go up the gear. WHAT I DID: My drivetrain was ...
Ludo's user avatar
  • 181
11 votes
2 answers
7k views

Shimano 11 speed MTB cassette on an 11 speed road hub, which spacer should I use?

I have a Shimano 11 speed mountain bike cassette and a Shimano 11 speed road hub. Without a spacer there is considerable wobble of the cassette, and I read that a spacer is required. My wheels came ...
sdgfsdh's user avatar
  • 887
2 votes
1 answer
930 views

Upper pulley too far from cassette

I'm doing a 1x conversion with a Shimano SLX (M7000) groupset on an old road frame. I just installed the rear derailleur and the pulley is too far away from the cassette. 18mm from the max cog (...
Tomer Weller's user avatar
1 vote
1 answer
3k views

1x GRX chain sizing with 42T cassette

I'm trying to convert a bike to a Shimano GRX 1x setup using the following components: RD-RX812, CS-M8000 (11-42T), CN-HG701-11 (and FC-RX810-1, 42T). The problem I'm stuck at is when shifted to the ...
nbenn's user avatar
  • 143
2 votes
3 answers
9k views

Will this mix of Shimano 10 speed components work together?

My goal is to cobble together a 1x10 groupset using some Shimano 105 5700 shifters. From what I have read, I think that these components will work together, but I want to be sure before purchasing: ...
sdgfsdh's user avatar
  • 887
0 votes
1 answer
529 views

Extending range on SRAM PG-1130 cassette / cassette specification

I'm considering buying a Kona Rove ST bike with a 1x drivetrain setup. However, one concern I have is a limited range of higher gears (40:11 ratio for the highest gear). I would like to have some more ...
arunasm's user avatar
  • 23
1 vote
2 answers
4k views

Going from 2x8-speed to 1x11-speed

I bought a beginner bike with a 2x 8-speed Shimano setup a year ago. I am looking to upgrade, now that I am getting more in to cycling then expected. Since I live in a really flat area (when I go on 3-...
nclsvh's user avatar
  • 179
1 vote
1 answer
538 views

How do I move my chainring without moving my crank arm?

I recently did a 1x10 conversion on my mountain bike. I replaced almost everything on my drive train except for my crankset. The single chainring (104 BCD, 34T) fits onto my drive-side crank arm in ...
user2670468's user avatar
10 votes
2 answers
289 views

Do pros ride with 1X configuration on some courses?

I'm looking at the first stage of the Tour of California, which is on a flat course (around Long Beach, USA). Since there's no real dénivelé (french, "difference in height"), there is no need for a ...
Max's user avatar
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