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Re: Stumpjumper clone
Hello everyone! Assembled a bike on a frame from AirWolf. I waited a very long time for production (one and a half months), and then another 3.5 weeks of delivery. I turned to him because of the promises to make any color (I wanted the blue SJ 2019 Expert), but it turned out that he can only do a few templates. He applies the logo and text with a sticker, not under the varnish. The terrible quality of the metal inside the thread in the frame, one bolt turned (the frame was sent to me disassembled due to the restrictions of the postal service on the dimensions of the parcel), but at a risk, I put it on the blue thread lock. Perhaps I will order a new bolt from the turner, since the thread in the frame is deep, and the screw (similar to the original one) uses only ~ 7mm of it. I took a RockShox rear shock, ordered an original flip chip, and here is the first failure - it does not fit the Chinese link (EXTENSION). The height of the flip chip is about 16mm, and the groove in the link is 13.7mm. Using physical force, I inserted a shock absorber into the link, but it looks unsafe. I ordered a 14mm bushing for an 8mm bolt. The original bolt for the upper mounting of the shock absorber was too long, shortened it by 3mm (this was reported above in the topic). I also ordered a 21.8x6mm top mount bushing, and it fits much better than the included bushing (it got loose). So if you use an RS shock absorber, then order 21.8x6 and 14x8 bushings right away, you will save a lot of nerves. I would be grateful if you could recommend FOX hubs (I only use RS on my bikes and am not familiar with FOX). I did not succeed in closing the cable routing hole as in the tips above (with a rubber plug). I sealed the place with a protective film, made a hole in it, and pulled the cables through them. The original chain guard fit perfectly, as did the axle. I also used another clamp, the Chinese one is huge (and heavy). Depth for seat post approx. 170-175mm (frame size L). After assembly, as in the photo (without bottle), the weight came out 12.85kg The RS Super Deluxe shock has a very large reservoir can, which interferes with a 750mm bottle with a cap. I'm thinking of putting Fox on, it has a smaller tank  P.S. Sorry for my english (google)
October 16, 2021, 04:02:28 PM |
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Re: Stumpjumper clone
After riding the trail, I checked the bolts on the lower links on the frame. They destroyed the threads and turned effortlessly in it. I ordered new bolts, longer ones, as the threads in the frame are much deeper. At the same time, I changed the bearings to normal ones (2RS), there were bearings that were not intended for such conditions (sand was clogged in them after the first trips). The bottom shock absorber bushing 14 * 8 fits perfectly into place, much stronger than a flip chip. October 23, 2021, 04:28:43 PM |
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Re: Stumpjumper clone
Where did you buy bolts like those?Hello! I ordered the bolts to be made by a craftsman who has a lathe. October 24, 2021, 02:15:45 AM |
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Re: Stumpjumper clone
Do you remember what stainless steel they did use ?Bolts made of aluminum, not steel. The original bolts (specialized) are made of aluminum, and so are the Chinese ones. The master said that the Chinese bolts with a tapered thread, it is less than necessary for the M12x1. P.S. I also asked to make it a hexagon 6, not 8. And now all the bolts and the axle can be tightened with one tool. October 25, 2021, 10:17:07 AM |
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Re: Stumpjumper clone
The manual contains large values of the moment, I doubt that the Chinese materials will withstand them. Replaced the lower shock absorber bushing by 15mm, because of the grooves in the link (for the flip chip), the 14mm bushing did not provide good retention. I changed the shock absorber to a simplified "deluxe" so that a thermos could be placed in the bottle holder, for driving in winter
December 01, 2021, 01:25:47 PM |
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Re: Stumpjumper clone
For the shock absorber, I ordered the original bolts and flip chip ( https://webshop.bestbike.de/us/specialized-sub-my19-sj-levo-fsr-j1-rear-shock-har.html ). The top bolt had to be shortened by 2-3mm, the flip-chip did not fit. The Chinese top bolt is bad in that it is for a large key, because of this it is not strong at the base of the cap, breaks off when screwed. December 02, 2021, 09:20:02 AM |
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Re: Chinese Carbon 29er Pic Thread.
a few photos...
December 04, 2021, 11:18:24 AM |
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Re: Stumpjumper clone
What did you use for rear shock bushings?For RS shock absorbers, you can use bushings 21.8mm*6 (pos A on pic) and 15.0mm*8 (pos B on pic) for example - https://www.bike-discount.de/en/rockshox-bushing-set-8mm-metric/imperial March 09, 2022, 11:44:25 AM |
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Re: Stumpjumper clone
How you solve quest with hole in front triangle where cross brake and rear derailear tube? What fitting needed?My solution A piece of protective film, and soundproof tubes (they fit into the rear triangle very tightly, so they are inserted there for a short length). March 16, 2022, 05:59:31 AM |
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Re: Chinese Carbon 29er Pic Thread.
Our winter is not over
April 07, 2022, 02:17:28 PM |
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