cranky change
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cranky change
I am replacing a damaged FSA Omega 50x34T BB386EVO crank using a Nylon cup Press Fit BB-PF30/6000 CZ & am interested in trying a different brand.
The 50x34T works, but the 34T is hardly ever used... the times it might have been used were on accident. 36T might see more use, not sure tho as the 50T seems to be the default choice & wouldn't want to lose it for a small ring change. Essentially as long as it wouldn't necessitate a der change, it's open for change.
With the replacement of the crank assembly, the BB will be changed. Not pigeon held to FSA, only to the frame hole.
Any recommendations for a complete package that will include the crankset, BB, spacers, washers, etc?
Updated Info:
BB Standard: 386EVO
Frame BB Shell ID: 46mm
Common Shell Width: 86mm
Essentially a PF30 with 86.5mm wide shell. 386EVO Bottom Brackets
The 50x34T works, but the 34T is hardly ever used... the times it might have been used were on accident. 36T might see more use, not sure tho as the 50T seems to be the default choice & wouldn't want to lose it for a small ring change. Essentially as long as it wouldn't necessitate a der change, it's open for change.
With the replacement of the crank assembly, the BB will be changed. Not pigeon held to FSA, only to the frame hole.
Any recommendations for a complete package that will include the crankset, BB, spacers, washers, etc?
Updated Info:
BB Standard: 386EVO
Frame BB Shell ID: 46mm
Common Shell Width: 86mm
Essentially a PF30 with 86.5mm wide shell. 386EVO Bottom Brackets
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Last edited by Troul; 02-24-21 at 01:30 PM.
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Unsure if I'd be able to adapt the SHIMANO 105 HOLLOWTECH II Road Crankset 2x11-speed set in?
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I need to go down such bearing route in the future, but I am not sure what type would be best.
I need to move on from 2-piece cotter pin cranks
I need to move on from 2-piece cotter pin cranks
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Hopefully my thread can serve both us some use in helping identify some solid solutions.
So far, to keep things fitting as it should, anything that takes the place of my B3155 bottom bracket might need a sleeve if going Shimano. Not really sure if I would like to induce a possible creak.
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Complete crank packages (crankset, BB, spacers, washers etc) for BB386 frames dont really exist. You would need to first choose your crank type and you then pick the correct BB386 bb from an aftermarket brand. Shimano for example do not make bb's for BB386 frames. But a Shimano crank will definitely fit with the correct bb or adapter.
You have plenty of options. You can fit any modern 24mm or 28.9, 30mm crankset available, except for older 1st generation BB30 cranks.
Fitting a Shimano Hollowtech crank, you could fit a BB386 to Shimano conversion bb unit.
or you could fit a normal BB386 bb and then use 30mm to 24mm adapter cups.
You have plenty of options. You can fit any modern 24mm or 28.9, 30mm crankset available, except for older 1st generation BB30 cranks.
Fitting a Shimano Hollowtech crank, you could fit a BB386 to Shimano conversion bb unit.
or you could fit a normal BB386 bb and then use 30mm to 24mm adapter cups.
Last edited by trailflow1; 02-21-21 at 02:02 AM.
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Complete crank packages (crankset, BB, spacers, washers etc) for BB386 frames dont really exist. You would need to first choose your crank type and you then pick the correct BB386 bb from an aftermarket brand. Shimano for example do not make bb's for BB386 frames. But a Shimano crank will definitely fit with the correct bb or adapter.
You have plenty of options. You can fit any modern 24mm or 28.9, 30mm crankset available, except for older 1st generation BB30 cranks.
Fitting a Shimano Hollowtech crank, you could fit a BB386 to Shimano conversion bb unit.
or you could fit a normal BB386 bb and then use 30mm to 24mm adapter cups.
You have plenty of options. You can fit any modern 24mm or 28.9, 30mm crankset available, except for older 1st generation BB30 cranks.
Fitting a Shimano Hollowtech crank, you could fit a BB386 to Shimano conversion bb unit.
or you could fit a normal BB386 bb and then use 30mm to 24mm adapter cups.
Avoiding the adapter cups is important for the replacement crank & BB. I'll have to dig around to find the pair of parts that support the existing bb.
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Is there a triple ring crank that takes the BB-PF30? I'm interested in the SHIMANO TIAGRA 4703 crankset HOLLOWTECH II as it has the 50/39T, but it's a triple ring (50/39/30T) & would want to remove the 30T ring. I know it may increase the spindle width, but I would not mind that.
Would this Tiagra 4703 crankset use the BB-PF30 that the frame requires now?
Would this Tiagra 4703 crankset use the BB-PF30 that the frame requires now?
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Why are there no options for a 50-36T or 50-39T?
I'd likely go with the Shimano FC-R7000 105 11spd Double Crankset if they had the prepackaged combo I'm after.
50-36T or 50-39T Shimano FC-R7000 105 11spd Double Crankset with the SM-BB72-41 SHIMANO ULTEGRA Press Fit Bottom Bracket 86.5 mm would seem to replace the FSA setup now as a direct swap.
I'd likely go with the Shimano FC-R7000 105 11spd Double Crankset if they had the prepackaged combo I'm after.
50-36T or 50-39T Shimano FC-R7000 105 11spd Double Crankset with the SM-BB72-41 SHIMANO ULTEGRA Press Fit Bottom Bracket 86.5 mm would seem to replace the FSA setup now as a direct swap.
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Is there a triple ring crank that takes the BB-PF30? I'm interested in the SHIMANO TIAGRA 4703 crankset HOLLOWTECH II as it has the 50/39T, but it's a triple ring (50/39/30T) & would want to remove the 30T ring. I know it may increase the spindle width, but I would not mind that.
Would this Tiagra 4703 crankset use the BB-PF30 that the frame requires now?
Would this Tiagra 4703 crankset use the BB-PF30 that the frame requires now?
a triple Tiagra 4703 crankset is not really viable because your FD and shifters are for doubles only.
The Tiagra 4703 crankset would fit into the BB-PF30 with PF30 SHIM adapters. That is doable.
But removng the smallest inner ring doesn't turn the crank into a double that easily. The triple crank middle and outer chainrings will be too far outboard for your front derailleur. To do this, you will need a triple FD, and a triple left shifter. And you would still a have a dedundant click on the inner ring position.
my advice instead just buy a double crank. It'll be less cost overall. Even if the triple crank is dirt cheap. Give it a pass.
Last edited by trailflow1; 02-21-21 at 07:20 AM.
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The only similarities of the SM-BB72-41 and a BB386 bb is they are both 86.5mm wide.
Last edited by trailflow1; 02-21-21 at 07:51 AM.
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Probably because the demand is low and it would create too much stock inventory. When the current options cover most people needs. You could customise and fit a 36t inner. The inner ring is not that expensive.
The shifting wont be as optimised because of the ramps on the big chainring but it will still shift. The 2 teeth isn't too much of a difference that it will cause any problem.
The shifting wont be as optimised because of the ramps on the big chainring but it will still shift. The 2 teeth isn't too much of a difference that it will cause any problem.
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a triple Tiagra 4703 crankset is not really viable because your FD and shifters are for doubles only.
The Tiagra 4703 crankset would fit into the BB-PF30 with PF30 SHIM adapters. That is doable.
But removng the smallest inner ring doesn't turn the crank into a double that easily. The triple crank middle and outer chainrings will be too far outboard for your front derailleur. To do this, you will need a triple FD, and a triple left shifter. And you would still a have a dedundant click on the inner ring position.
The Tiagra 4703 crankset would fit into the BB-PF30 with PF30 SHIM adapters. That is doable.
But removng the smallest inner ring doesn't turn the crank into a double that easily. The triple crank middle and outer chainrings will be too far outboard for your front derailleur. To do this, you will need a triple FD, and a triple left shifter. And you would still a have a dedundant click on the inner ring position.
Press Fit BB-PF30/6000 CZ Nylon cup is what the frame takes.
Probably because the demand is low and it would create too much stock inventory. When the current options cover most people needs. You could customise and fit a 36t inner. The inner ring is not that expensive.
The shifting wont be as optimised because of the ramps on the big chainring but it will still shift. The 2 teeth isn't too much of a difference that it will cause any problem.
The shifting wont be as optimised because of the ramps on the big chainring but it will still shift. The 2 teeth isn't too much of a difference that it will cause any problem.
The current need is to procure a new crank set & new bottom bracket assembly. That's unavoidable at this point.
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But FSA, have never marketed a bb either in press fit or threaded that is officially ''compatible with a Shimano crank'', because that's their competitor. FSA has their own version of 24mm cranks called MegaExo that competes with Shimano. If you are searching for ''FSA bb for Shimano'' that wont help you much. You need to use search terms like PF30 or BB386 BB (depending on your frame) for 24mm/Shimano etc.
Shimano do not make bb's for BB30,PF30,BB386 frames at all.
Shimano only make press fit bb's for 41mm shells (BB86, BB92). None of those will work.
The BB-PF30/6000 CZ bb only comes in 46mm. Your frame is either PF30 or BB386. You can measure your frame's shell width. PF30 is 68mm wide for road, and BB386 is 86.5mm wide for road. But this doesnt effect the compatability of a Shimano crank. It just means the BB386 bb has a longer middle protective sleeve.
Last edited by trailflow1; 02-21-21 at 12:04 PM.
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Found the following that the frame requires:
BB Standard: 386EVO
Frame BB Shell ID: 46mm
Common Shell Width: 86mm
Essentially a PF30 with 86.5mm wide shell. 386EVO Bottom Brackets
BB Standard: 386EVO
Frame BB Shell ID: 46mm
Common Shell Width: 86mm
Essentially a PF30 with 86.5mm wide shell. 386EVO Bottom Brackets
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The search for crank that I can net a 50x36T is the goal, but I'll consider a 50x34T that I can easily swap the inner ring out for the more tooth count ring if the price is right.
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the black SRAM Rival22 BB30 Alloy Double Crankset - 11 Speed 175mm x 34/50t looks like a ringer, but i see the Sram Force 22 BB30/PF30 Crankset - 11 Speed 175mm x 34/50t (Compact) also available. The compact is much more costly, & if I go that direction, the extra spending for the 36T ring swap is not happening, although I do not see an option for a "Rival" 36T ring.
The force only shows a BB30PF option. I'd rather not adapt. as most times it brings on a new noise.
The force only shows a BB30PF option. I'd rather not adapt. as most times it brings on a new noise.
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The decision is to go with the sram force 22 pf30 crankset 177.5mm 34/50t (compact) & pick up a 386EVO (PF30) BB. As it would be expected, another road block has popped up. Back Ordered.
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