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Alloy Compact Double Square Taper Chainset - 50/34T - 170mm

Customer Reviews (9)
3.3 / 5| Write your review
£24.99
was
Details
Product Reviews (9)
Questions & Answers (14) Q & A
Details
- 110PCD
- Requires 110mm square tapered bottom bracket
- Steel chainrings
- 7/8 speed compatible
- Crank bolts not included (SJSC #27430 recommended)
Specification
Downloads
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Product Reviews (9)
Overall Product Rating 3.3 / 5
Good Quality, But Beware Of The Large Chainring Offset.
By
24 Jul 2016
4 / 5
I recommend this product
ConsLarge chainring offset (may require change of Bottom Bracket)
ProsGood quality
This chainset replaced the 52/42 setup on an 80's road bike. Similar to a previous reviewer, I had to change to a 103mm bottom bracket to get the rings near to the original chainline. The new chainline is still about 4mm outside the optimal position, but it is usable with sensible combinations of front and rear gears (i.e. only use the smallest 3 rear sprockets with the big chainring).
The quality of manufacture seems fine.
The value for money is somewhat undermined by the need to purchase and fit a new bottom bracket.
As noted by another reviewer, the design does seem to have a flaw in that one of the spider arms (and therefore ring retaining bolt) is behind the crank arm, which will make it fiddly to swap a chain ring.
Good Value
By
15 Jul 2016
5 / 5
I recommend this product
ConsNone
ProsGood value, good quality for the price.
Bought this to replace a 52/42 chainset on older bike. Fitted it with UN55 110mm BB as recommended and seems to work perfectly. Chainline seems correct.
Mr
By
05 Nov 2015
1 / 5
ConsBad information
ProsGood quality
As someone else pointed out, the chainline is all wrong with a 110mm bottom bracket. Shimano spec for outer chainring is 46mm from center of frame. I have 52mm with this chainset and a 110mm bottom bracket. Apart from that it's a solid bit of kit.
Stupid Design.
By
03 Aug 2015
3 / 5
ConsStupid design
ProsValue for money
I only ever use a single ring so setting it up was problematic. The *ucking spider arm is directly behind the crank arm, making for one crap design.
However once you've gotten over this shock and worked out how to sort it its a good solid peice of kit for the money.
Great Value
By
22 Jul 2014
4 / 5
I recommend this product
ConsNone
ProsGreat value
Bought two of these, one to replace existing chainset on Harry Quinn, the other to build 70's Bianchi for UK Eroica. Both performing great.
Good Crank But Not Near Enough To Original Chainline
By
21 Jan 2014
4 / 5
I recommend this product
bought this and a new 110BB to fit it on. previous one was 120mm
fitted this on a 110 mm BB
chain rings were further away from frame than previous 52 42 crank.on its 120 mm BB
so that makes chain line and alignment worse. so i got a 103mm BB and that improved it a little. could do with a crank that sets the rings a little nearer the frame....was further away than origina set u even with the 103 mm BB

but i cant find another compact chainring crank set that sets the rings any nearer the frame . the bike is an old 1964 falcon frame...531 reynolds etc , been in family since new so that is why i am keen to keep it going and get up hills in peak district as i am now a pensioner
Highly Recomended
By
11 Feb 2013
5 / 5
I recommend this product
Proslooks, value for money
Needing to upgrade a very old bicycle without a massive cash outlay this certainly hit the spot. very well finished and manufactured, excellent value for money.
Mr.
By
14 Jun 2011
0 / 5
Although unbranded, it's light and well finished, and looks like it cost a lot more than it did. I needed it for my old Peugot P6 as I needed smaller crank rings to suit the 9sp 12~23 cassette I've ma
Mr
By
01 Apr 2011
4 / 5
I recommend this product
Consa little chunky
Prosgreat value
Certainly does the trick in these testing times esp as the bike it is on is not last years model! not the lightest but as I am not either it is defo a better ride than having a 52~42 chainset.

quick despatch ~ good service all round
Questions & Answers (14)
Weight Of Crankset
By
31 Jul 2016
Hi. How much does the crankset weigh?
Thanks, Mark
SJS Customer Service:
Hi,

This crankset including the crank caps weighs 790 grams on our scales.

Thanks.
Are The Cranks Jis Or Iso Tapered? Thank You.
By
20 Jun 2016
...and how can I tell if your bottom brackets are ISO or JIS.... I'm thinking this might have caused the chainline issues from other commenters.
SJS Customer Service:
Hi,

This chainset requires a JIS bottom bracket. Most of our bottom brackets and chainsets are JIS unless they state otherwise. All of our ISO bottom brackets are shown clearly as ISO.

Thanks.
How Many Arms Does This Crank Have? Thanks
By
16 Nov 2015
SJS Customer Service:
Hi,

This crankset is a 5arm 110BCD unit, the fifth arm is hidden behind the main crank arm.

Thanks.
Is This Chainset Done With 175 Cranks?.
By
14 Sep 2015
Feel sure I spotted an ad.for these on your web page the other day.
Should have bought them while I had the chance if so.
SJS Customer Service:
Hi,

This is the 170mm version you are looking at, we stock the same crankset in a 175mm length, these are SJSC part number 31096.

Thanks.
Alternate Big Ring
By
22 Jun 2015
Hi, Would it be possible for you to ship this with a smaller big ring, like a 44t instead of the 50t?
SJS Customer Service:
Hi,

These chainsets are sold as they are so we would not be able to swap the chainring out for you I'm afraid. They use a 110mm BCD chainring so you could swap the chainring out yourself if you wanted to.

Thanks.
Qfactor (Tread)
By
21 Mar 2015
Do you know the Qfactor (tread) of this chainset with 110mm bottom bracket?
Thanks.
SJS Customer Service:
Hi,

When fitted with a 110mm bottom bracket this chainset has a Q-factor of 165mm.

Thanks.
Compatibility With A Brompton Bike
By
24 Feb 2015
Hi. I want to fit this chainset on my brompton. Would this be compatible with it?
You say that this bottom bracket "Requires 110mm square tapered bottom bracket". The Brompton bottom bracket measures 119 mm. Do you think this would be a problem?

Regards Pedro.
SJS Customer Service:
Hi

We've never tried to fit this chainset on a Brompton so we wouldnt be able to advise whether it would work or not. The 110mm bottom bracket advise is in regards to its use with a standard derailleur system however we have found with other chainsets that there is a risk of the chainring hitting the frame on the bike.

Regards, Jamie
Will This Fit A New Halfords Carrera Tdf Which Has A Dou
By
27 Aug 2014
ble chain ring of 52 and 42 teeth and an 8 gear cassette
I would like to try this alternative as I live in S Wales where there are lots of hills and I am 65 years of age but really enjoy road riding
SJS Customer Service:
Hi,

This chainset requires an 110mm square taper bottom bracket, if your bike has one of these already fitted then it will be a straight swap (you'll still need to adjust the front derailleur) if it does not have this type of bottom bracket you'll need to purchase one to allow you to fit this chainset.

Thanks.
Use With A Tange Bb
By
12 May 2014
I have a "spare" tange BB, 113mm, box says standard 4 flats, ISIS spline. Will this be suitable for this chainset? Many thanks
SJS Customer Service:
Hi,

This chainset requires a square taper bottom bracket, ISIS splined bottom brackets were a completely different fitting to square taper chainsets. You'll need to confirm it has a square taper fitting and isn't the ISIS fitting like SJSC product 25572.

Thanks.
Would This Fit Straight Onto A 2012 Carrera Tdf
By
13 Apr 2014
Also would I need any extra parts or alter anything else.I'm new to biking and need a little help to get up the hills but intend to swap back as I get fitter so any help would be grateful thanks
SJS Customer Service:
Hi,

You may need to adjust your front derailleur but other wise you shouldn't need anything else to fit it.

Thanks.
Bb Axle Length
By
08 Jan 2014
hi
wikey here again.


i have started trying to fit these chainring cranks to the old 1960 bike i am using.

having taken the current cranks off the bike and properly measured the bb axle it is 115 or 116 mm end to end without the bolts on it.

having compared the relative position of both cranks on it, i really need a BB axle that would be 6 or 7 mm shorter on the chainrings side, as the compact chainring crank needs to be this much nearer the frame.

is there anything suitable ??

also are the BBs handed with different lengths of axle protruding from the frame as thismay help a bit..??

grateful for any suggestions you may have
wikey
SJS Customer Service:
Hi,

As I said in my previous reply the 110mm version is required for this chainset. This length is the overall length of the protruding axle, the longer the length the more the axle sticks out from the shell, the length of the shell does not change between these sizes. Square taper bottom brackets don't have separate axles so an entire new 110mm unit will be needed. You will also need to measure the bottom bracket shell on you bike to determine which 110mm bottom brackets will fit. This will most likely be between 68mm and 70mm.

Thanks.
110 Mm Bottom Bracket
By
18 Dec 2013
hi
it says on description of this chaninset that it requires a 110mm square tapered bottom bracket. well you dont seem to sell one on your site and also most bikes are 120 plus to about 140 plus. so is this really the case that it requires a 110mm bottom bracket. i am trying to replace a 52 42 chainset on an old 1960s english falcon frame. it all works fine, i just want lower gears being a 65 years old. the current axle length is about 135mm
will this chainset work with it?
thanks
wikey

SJS Customer Service:
Hi,

All modern bikes use much smaller bottom bracket lengths due the newer designs of chainset which have all the rings placed on an extended spider. Most of our bottom brackets have a 110mm option, but as I don't know the shell length of your BB I can't recommend any straight away. The chainset will work with what you are trying to achieve.

Thanks.
Will It Fit A Shimano Square Taper Bottom Bracket
By
13 Nov 2013
SJS Customer Service:
Hi,

Yes this will work with a Shimano square taper BB as long as you choose the correct 110mm size.

Thanks.
What Is The Crank Length? Is The Square Tape Spindle Iso Standard?
By
14 Oct 2013
SJS Customer Service:
Hi,

The crank length is 170mm and yes it uses standard taper bottom brackets.

Thanks.