#Redshift shockstop stem iso

That established, I ported it over to my ‘cross inspired fixed and went in search of lumpier lanes and paths. No rebound, bounce or similarly unwelcome characteristics in 200 miles. Frankly, I hadn’t noticed any change in the handling, which was razor sharp, yet predictable. Extending ride times and distances confirmed this, although despite my weight corresponding with the elastomers, the ride proved a little harsher than I was expecting.Įxchanging the orange elastomer, for its softer yellow counterpart made all the difference, ironing out those intrusive sections and greatly reducing fatigue around the arms and neck area. Maiden voyages on my TT bike were around the 10 mile mark, to adjust to any potentially unusual characteristics, compared with a traditional stem. Compressing very subtly to counteract washboard tarmac and similarly intrusive stuff. My cyclo-cross cum fixed gear gravel bike was the obvious candidate, my fixed gear TT bike, based around a 1955 531 frameĪnd carbon fork less so despite the damping characteristics of their materials, the front end can feel a little harsh.Īssuming you have followed the instructions and guidelines correctly, the Shockstop should add a subtle “zing” rather than “pogo-stick” bounce to the ride. Besides, no prizes for busting your equipment, or seriously injuring yourself for speed’s sake. Stop, remove the bolt and start again, should you meet any undue resistance.įirst time round, this took me 40 minutes - honed to 15 given a few attempts and familiarity. To set the preload, apply downward pressure to the stem extension and ensure the preload bolt aligns with the threaded hole and dial it tight. I am 70 odd kilos, thus went for the blue and yellow respectively. Elsatomers must be positioned with the handles facing outwards and above the support. as far as it will go helps with the slotting phase. Pushing the stem to the height of its travel, i.e.

Hook the elastomer out and replace using a combination appropriate to your weight. True to instructions, expect 32 turns and the bolt should remain within the wedge. This is to ensure the specified loads to check things will hold up, in the long term.

#Redshift shockstop stem iso

Erik tells me they generally fatigue test to 200% of the ISO standards and using 125-150% of the suggested forces. Redshift sports are mechanical engineers by training and place a very high premium upon fatigue testing. Spares are also, readily available, though I was surprised to discover (Unlike old school Rock Shox and similar elastomer-based forks) these don’t require the occasional lick of rubber friendly grease. This ranges from 52 to 98 kilos, which caters for most, albeit not all riders. In common with the Girvin Flexstem, its elastomer based and these too, are colour-coded, according to rider weight. However, inspection and ultimately, assembly are undertaken sat their Philadelphia HQ.

Components are sourced from suppliers in the US, Taiwan and other parts of the world. However, it’s made using a 3D cold forging process. I wasn’t surprised to learn the stem’s body is 7075 aluminium. Primarily intended for 31.8 oversized bars, shims for smaller sizes (including 25.4) are available at $9.99 apiece.īeing road biased we’ve gone for the 6degree but there’s a 30degree option, which might be nearer the mark for hybrids and indeed, more relaxed tourists.

However, it is safe to use with 1inch steerers (hence my Holdsworth) and even quill types, with a quill to ahead adaptor. Oh, and any diameter you like so long as it’s 11/8th. The stem itself is available in a choice of two rises and a several lengths.