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Origin8 Down Tube Shift Adapter - 28.6-31.8mm

Customer Reviews (2)
4 / 5| Write your review
£24.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Allows you to install downtube shifters on a frame with no braze-ons. Fits down-tubes 28.6 to 31.8mm (w/ shim). Machined alloy construction.
Product Reviews (2)
Questions & Answers (7) Q & A
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Product Reviews (2)
Overall Product Rating 4 / 5
Does what it's supposed to
By Jake
18 Nov 2017
4 / 5
I recommend this product
ConsExpensive for what it is
ProsWorks without issue
Slightly overpriced but there's no other version of this on the market anywhere so can't really complain, useful and functional.
By Richard
20 Jun 2016
4 / 5
I recommend this product
ConsChunky appearance
ProsVery effective
Works really well. Places the gear shifters about 10mm further out from the downtube compared to brazed on bosses so looks a little "chunky"
Questions & Answers (7)
Can I use this for 3x8 gearing?
10 Nov 2020
Hello, we cannot confirm this as its just an adapter.

JK 10.11.20
Can I use this on an aluminium frame 2016 Specialized Allen Elite
29 Oct 2020
Barrel adjuster housing broke off and stuck for a solution. LBS says they are too busy to help ??
Hello, as we do not have your bike here to test fit this we could not say- if your frame tube is between 28.6 to 31.8mm then this will fit over it- however if its ovalized or in anyway not perfectly round then there is a chance this might not work. You must have this fitted by a professional cycle mechanic as you risk damage to your frame if this is not fitted correctly.

JK 29.10.20
Can this be used instead of a spacer on a Ahead threadless fork steerer?
12 Apr 2020
Nice idea, we've never tried it, looks like it could be possible but it's not recommended by the manufacturer so we can't say yes to this question, sorry RT 13/04/2020
Can I convert my 3 Speed Sturmey Archer SLS30-T Thumbshifter to mount onto this clamp?
30 Dec 2019
Yes, this should work.

Thanks - 30/12/19
Would this be worth a try with a downtube about 33mm dia
18 Nov 2019
Looking to use downtube levers on my 1996 Marin Bear Valley, I see that the max dia if this is 31.8,mm. I know it wouldn't be perfect but what do you reckon? Thanks,
We simply could not recommend it.

Thanks - 19/11/19
Are these compatible with the Shimano SL-R400 8 Spd Braze-On Down Tube Shifters?
02 Feb 2019
Yes, these should be perfectly suitable.

Thanks - 04/02/19
dpes this fir with Shimano Dura-Ace SL-7900 10 Spd Braze-On Down Tube Shifters
08 Sep 2018
Hi yes they will fit. Thanks