Thorn 104/64 PCD Triple Crankset MK2 - Black
£49.99
was
Size
£49.99
was
Manufacturer :
SJS Cycles part number :
Manufacturer part number :
Details
Alloy forged crank arms
BCD: 104/64mm
Sand blast black finish
JIS Square Taper
110mm bracket required to get a 51mm chainline on middle ring, 107mm can be used if only using a single ring in the outer position.
Weight: 565g (150mm)
BCD: 104/64mm
Sand blast black finish
JIS Square Taper
110mm bracket required to get a 51mm chainline on middle ring, 107mm can be used if only using a single ring in the outer position.
Weight: 565g (150mm)
Specification
Downloads
Download File
Questions & Answers (8)
Rohloff Chainline
By Samuel Gamester
26 Jul 2023
Hi please clarify what length bb spindle is required to give 57mm chainline with single chainring in outer position?
SJS Customer Service:
107mm gives a chain line of 51mm to obtain a chain line of 57mm you will need 119mm SK 27/07/23
crank extractor tool
By Naomi Crosby
19 May 2020
which crank extractor tool should I use with this? I have bought a Parktool CCP44 tool but think it is the wrong thing
SJS Customer Service:
Hi, you need a Park Tool CWP-7 Crank Puller for Square Taper & Splined Cranks or Shimano TL-FC10 Crank Extractor / Puller. The tool you have is for splined bottom brackets. Thanks
Can This Crank Used With Double Chainring? What Is The Compatible Bb With Double Chainring?
By Anonymous
06 Jun 2016
None
SJS Customer Service:
Hi,
You could use this crank with just two chainrings if you wanted to. The suitable bottom bracket will depend on the chain line you're looking to achieve and if you are going to mount the two chainrings on the inner and middle position or the middle and outer position.
Thanks.
You could use this crank with just two chainrings if you wanted to. The suitable bottom bracket will depend on the chain line you're looking to achieve and if you are going to mount the two chainrings on the inner and middle position or the middle and outer position.
Thanks.
Q Factor And Narrow Bb?
By CW
17 Dec 2015
What would be the Q factor (outside to outside) on a 107mm BB?
It is mentioned 107 is the minimum recommended with 1 ring in the middle position, is that due to frame clearance or some other reason?
It is mentioned 107 is the minimum recommended with 1 ring in the middle position, is that due to frame clearance or some other reason?
SJS Customer Service:
Hi,
With a 107mm bottom bracket and the 170mm version of the cranks, the Q-factor measures at 180mm. When run with a 107mm bottom bracket you can only fit a chainring to the outer position because of frame clearances.
Thanks.
With a 107mm bottom bracket and the 170mm version of the cranks, the Q-factor measures at 180mm. When run with a 107mm bottom bracket you can only fit a chainring to the outer position because of frame clearances.
Thanks.
10Speed?
By arvidnl
16 Sep 2015
Are these cranks compatible with 10 speed chain rings?
I'm guessing the distances between chain rings should be a bit smaller on 10 speed?
I'm guessing the distances between chain rings should be a bit smaller on 10 speed?
SJS Customer Service:
Hi,
There is nothing stopping you putting 10spd rings on this crankset, these cranks are perfectly compatible with 10spd chainrings. Most chainsets use chainring tabs that are a standardized size, the difference between 9 and 10spd would be taken up within the rings themselves although there is actually very little difference between 9 and 10spd rings.
Thanks.
There is nothing stopping you putting 10spd rings on this crankset, these cranks are perfectly compatible with 10spd chainrings. Most chainsets use chainring tabs that are a standardized size, the difference between 9 and 10spd would be taken up within the rings themselves although there is actually very little difference between 9 and 10spd rings.
Thanks.
Please Can You Recommend A Bottom Bracket For This Crank
By john kennedy
09 Sep 2015
i am building up / assembling parts for a bike for my daughter. the frame is an on one inbred, bb spec = 68mm, English threaded . i guess i am looking for a 68 / 110 mm with a JIS square taper? am i on the right lines? looking for something lightweight + good value.
thanks
thanks
SJS Customer Service:
Hi,
You are correct, a 68/110mm JIS bottom bracket would be the one that you require. We normally recommend the Shimano units, the 68mm versions are SJSC part 26972, just select 110mm from the drop-down menu.
Thanks.
You are correct, a 68/110mm JIS bottom bracket would be the one that you require. We normally recommend the Shimano units, the 68mm versions are SJSC part 26972, just select 110mm from the drop-down menu.
Thanks.
Hi
By Leonardo Pieri
09 Sep 2014
If a 110mm bracket is required to get a 54mm chainline, which lenght do i need to get a 50mm chainline?
thank you
thank you
SJS Customer Service:
Hi,
The shortest bottom bracket we do would be a 107mm, but that would only drop the chainline to 52mm which is as close as you'd get with these cranks.
Thanks.
The shortest bottom bracket we do would be a 107mm, but that would only drop the chainline to 52mm which is as close as you'd get with these cranks.
Thanks.
Hi. Which Bb Of Yours Do You Recommend With This Crank?
By Leonardo Pieri
09 Sep 2014
And is it ok for 9 speed?
Thank you
Thank you
SJS Customer Service:
Hi,
You could use any square taper bottom bracket providing you used the 110mm length. We would however recommend the Shimano UN55. Yes this crankset would be fine for use with 9spd chainrings.
Thanks.
You could use any square taper bottom bracket providing you used the 110mm length. We would however recommend the Shimano UN55. Yes this crankset would be fine for use with 9spd chainrings.
Thanks.