While, the Campagnolo faithful might feel left out Robin at Spa Cycles says that from looking at exploded diagrams of Campagnolo brakes he is pretty sure the bolt will work with older versions of the big C's brakes. And while £7 might seem a lot for one bold I doubt a fasteners merchant would better the asking price unless you were buying in considerable bulk.
Machined in sunny Bristol from 6A14V-a titanium alloyed with zinc and vanadium (six and four percent respectively) it's 73mm long, cut to Shimano pattern so a straight swap for the Japanese giant's RX100/ R450 /R650 road callipers and Tektro R358/538 models too. In practice it should work with any Tektro brake and everything short of Dura Ace from Shimano - it may work with DA too, but as the man from Spa said 'that's a bit of a law unto itself'. Why Ti? Well, other materials, including Cro-moly were considered but Spa says the wonder metal bore the least risk in terms of potential quality control issues. Aside from Shimano brakes I've managed successful transplant amongst some other marques including Miche and a lesser known XLM unit with adequate room for mudguard hardware.
Installation is simply a question of extracting the original bolt and slipping this in place, remembering a generous helping of TI paste to the threaded sections to prevent galvanic corrosion. Offer everything to the frame/fork drilling, snug tight, wire up and dial braking to suit. Despite suggestion from some clubroom oracles, there's been no discernable flex resulting in judder when braking and adjustment has been unnecessary in the three weeks, two hundred and thirty miles testing.
road.cc test report
Make and model: Spa Cycles Allen key to nut conversion bolt
Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
"Long bolt to convert dual pivot calliper brake to front nut fitting style. Either front or rear bolt can be converted.". Does just what it says on Shimano/Tektro and some other brakesets too.
Tell us some more about the technical aspects of the product?
Custom CNC machined in the UK from 6A14V titanium. Bolt dimensions based upon those used on Shimano RX100, R450, R650 and Tektro R538 and R358.
Rate the product for quality of construction:
8/10
Rate the product for performance:
8/10
Does exactly what it says on the tin.
Rate the product for durability:
8/10
Rate the product for weight, if applicable:
9/10
Rate the product for value:
7/10
Tell us how the product performed overall when used for its designed purpose
The long bolt converter allows older framesets to take advantage of modern dual pivot brakesets by replacing the OEM retaining hardware. It certainly seems a straightforward swap on Shimano pattern types and otherwise goes unnoticed once installed.
Tell us what you particularly liked about the product
Sensible dimensions, nice quality workmanship here in the UK.
Tell us what you particularly disliked about the product
Nothing of note.
Did you enjoy using the product? Yes
Would you consider buying the product? Yes
Would you recommend the product to a friend? Yes
Age: 38 Height: 1m 81 Weight: 70 kilos
I usually ride: Rough Stuff Tourer Based around 4130 Univega mtb Frameset My best bike is: 1955 Holdsworth Road Path and several others including cross & traditional road
I've been riding for: Over 20 years I ride: Most days I would class myself as: Experienced
I regularly do the following types of riding: cyclo cross, commuting, touring, fixed/singlespeed, mtb,
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