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104 BCD Square Taper MTB Crankset 30T/32T/34T/36T/38T/40T/42T Bike Parts
Narrow Wide Single Chainring .Black/Red/Blue/Green/Rainbow 5 Colors Aavailable
- 1.Fits any 104 BCD crankset.
- 2.Drop-Stop technology. On wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction.
- 3.Alternating wide/narrow tooth pattern prevents chain derailment.
- 4.Its hard anodised finish increases its longevity and durability.
Narrow Wide Teeth Chainring
Drop-stop design Chainring only apply for single speed crankset , please do not mix it with other chainrings together for 2X 3X system.
Otherwise the chain could not switch
104mm Bike Crank Arm Specification
MTB Bike Crank is Compatible with 1X 2X 3X 104BCD Deviation System
Material: Alu 6061 crank ,only 551g/set (1.28 lbs), Crank Bolts Included(4 sets).
3 Piece Chainrings Crank Design, fits for 9s/10s/11s, 1X/2X/3X MTB Crankset.
BCD:104mm,64mm;Chain Line: 49mm, Crank Arm Length: 170mm.
Color: Black
Standard BSA Bottom Bracket Crank Arm,compatible for 9/16 threaded Peal
Threaded hole,pedal size : 9/16" ,
Square Tpaer Bottom Bracket,BB not included
Taper Square 110.5mm/M8
Strong Design of Stiffener,45mm Wide Crank,Durable,Light Weight
Single Chainring Outer Diameter
Outer Diameter:
30T:127mm ,approx 0.06 lbs
32T:135mm , approx 0.09 lbs
34T:143mm , approx 0.11 lbs
36T:151mm , approx 0.12 lbs
38T:160mm , approx 0.15 lbs
40T: 168mm , approx 0.18 lbs
42T: 175mm , approx 0.2 lbs
30T narrow wide chainring construction is different with other chainrings
light and flexible constrution
smaller diameter is easy to ride in climbing
one piece crank nut in chainring
Forged chainring nut decreases interfece between chain and chainring
front and reverse side
30T Narrow Wide Teeth Chain Ring Show
We developed unique 32T forged nut Rainbow color Chainring
2 Type Rainbow Chainrings comparsion
Per customers suggestion,we especially developed this 32T forged Narrow Wide Chainring
Till now it is only applied for 32T Rainbow chainring
We will send the parcel randomly if you purchased 32T Colorful crankset
Normal 32T Rainbow Narrow Wide Chainring
Rainbow Chainring color will changes in different point of view
the real product is more attractive than what in the picture
Forged Crank Nut 32T Single Speed Chainring
Forged Chainring is our attempt, it does not have any effect on your riding
If you have better idea ,please inform of us ,we will try to make it in true
We appreciated your suggestion
Package Content
- bike crank * 1 set (right&left crank).
- 104mm Narrow wide chainring *1 . (if you only purchase bike crank , chainring not included)
- M8 Crank bolts *4 sets.
michael lynch
Reviewed in the United States on February 25, 2025
Worked good but my lady made me give my bike to the movers. She said I had to many bikes. Hope he is enjoying it
AER
Reviewed in the United States on September 27, 2024
Cheap upgrade, fixed the gearing on my mongoose BSO in conjunction with a mega gear freewheel so that i can now reasonably tackle up hill. Easy install and a slight tweak allowed me to use the chain guard that shipped with the bike.
Will Taylor
Reviewed in the United States on October 12, 2024
swapped out the chainring for a 42t, & added a bashguard. To replace the stock 52t crankset on my Dahon MU D8.
Pratap Kumar
Reviewed in India on October 26, 2023
From product and return not accepted
Roger Cole
Reviewed in the United States on June 9, 2022
Works like a crankset should. Cranks are stiffer than I’d expect at their price range. I’m actually pretty impressed at the overall value of the crankset, chainring and bolts. Be sure and use Loctite when installing chainring bolts. Reading through the other reviews, it seems like other purchasers omitted this step and suffered the consequences.
Mario
Reviewed in the United States on June 3, 2022
I went from a 3x7 to 1x7 on my Trek 820 . You will LOVE this ! The bike never shifted as smooth . This fits the chain like a GLOVE , no slipping EVER ! Believe me I rode this VERY HARD . The best money you will ever spend !
rob wood
Reviewed in the United States on February 13, 2022
I used this to convert my GT Aggressor Pro bike to 1X. Chainline alignment was perfect. The large/small teeth on the chainring really seem to help the chain from coming off in the rough stuff. I was constantly remounting the chain on the original stock setup. This also strips about a pound of weight from the bike. Durablility seems fine after a few rides. Definitely recommend.
Shopping~mom
Reviewed in Canada on July 30, 2021
These fit my bike perfect and are great quality. Way better then the cheap one that came with my bike and warped.
Fred
Reviewed in the United States on June 11, 2021
Two days before I was taking my new bike out for its first trail ride I decided I wanted to change the 2x gearing to a 1x. Easy enough with the right tools. I didnt have all the right tools. I tried to use a steering wheel puller to remove the crank arm and what do you know, I bent up the arms. Well, NO bike shop had a replacement crank in stock so I ordered this one and received it a day later. It went right on, worked as it should, and came with a chain ring which is now a cheap spare if I ever need it. The crank arms are similar in weight to my stock arms. I'd buy it again if I needed to.
harshbarj
Reviewed in the United States on June 10, 2021
Failed after 2 months. Installed on a European city bike with chaincase. Was hearing and feeling popping and grinding, but thought it was from the cheap bottom bracket. Then a few days ago I stomped on the pedals to outrun a semi and the chain ring came off. Seems several bolts had fallen off over the weeks. They were tightened down as much as I could get them. Simply not worth the money! Chain rings should be permanently bolted on for safety. A product recall may be in order.Will be keeping an eye out for a decent Shimano or Sturmey archer set once stocks come back.
Rolando Peralta
Reviewed in Saudi Arabia on February 28, 2021
It's a heavy duty alloy. I used it to replaced my 3x to 1x crankset.
Sean Legault
Reviewed in Canada on October 4, 2021
If you want a cheap quick way to convert to 1x with out changing the square tampered carterage bearings lower bracket, this will do the job. It's simple and it works what else can I say. Great price too.
Les/Winnipeg
Reviewed in Canada on October 4, 2021
Bought the single chain ring for a fixie-franken bike project. Worked out great! Got quite a bit of heavy use this season, and held up perfectly. Very good quality material and manufacturing, at this price, you can't go wrong.
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