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Topics - acedeuce802

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29+ & 27+ / 27.5+ FS Frame Options
« on: July 13, 2017, 03:36:43 PM »
I currently have a 2013 Giant Talon, and I'm planning for a full suspension Chiner build and wanted to get some opinions and see if anyone knows of other frames to consider.  I want a 27.5+ full suspension that can also use a 29x2.3 wheel/tire.  So far I've found 4 frames that fit the bill.  Some of these pro's and con's are general, and some are specific to what I'm looking for.  The M04 is not being produced anymore, so that one is not considered.

Carbon Speed CS-FS27 -

- Rear shock that terminates near bottom bracket (I can't stand when they mount to middle of top tube or down tube, unless they have geometry to load directly to head tube through top tube)
- Lightweight (2050g)
- Peter at Carbon Speed has great reputation
- A few builds with good reviews, still not as many builds as the other non-plus bike frames
- 130/122mm travel is good middle ground between XC and trail
- 31.6mm seat tube (seems most common, easier to find deals on posts)
- Similar geometry to Scott Spark which has great reviews, relatively slack headtube angle
- Cost, $635

- Rear brake cable routed through top tube and top of rear triangle, bending the cable through suspension travel
- No pivot on chainstays, seatstays, or rear axle, causing bending to the seatstays when the pivot actuates (common design, at least I've seen it on aluminum frames, but it's something I'd like to avoid)
- BB92 (subjective, I haven't actually worked with press fit bottom brackets before, but it seems like it has similar inconveniences of BB30, but with the smaller 24mm shaft of BSA)
- Small rear shock, 165x38 is intended for trunnion mount, but finding a trunnion mount shock seems difficult, 165mm non-trunnion are not all that popular either


- Rear shock that terminates near bottom bracket
- Pivot on chainstay
- Reasonable weight (2368g), I'd rather have a carbon frame that's slightly heavier if it means more reliability
- BSA (easy to maintain/install)
- 31.6mm seat tube
- 120mm travel good for XC
- 200x51mm shock opens up possibilities, especially DVO Topaz (I enjoy suspension tinkering, so DVO stuff seems really interesting)
- The few reviews about other ICAN bikes are positive
- 68 deg headtube angle reflects XC

- I'm not sure I've seen reviews, other than on Amazon
- Cost ($776 for IMUST XP07 on Amazon)


- Rear shock that terminates near bottom bracket
- Pivot on chainstay
- Reasonable weight (2400g), seems acceptable considering travel and intended use
- 30.9mm seat tube (this is a personal pro, my Giant is 30.9 so I already have a dropper that I'd transfer to the Chiner)
- 150mm travel, more trial/AM focused, also allows use of DVO Diamond, for same reasons of Topaz above
- Slack 66 deg heat tube angle matches AM focus
- I haven't been able to track down if this is a direct copied frame, but it's very close to a Norco Carbon Sight or Range, with slightly different geometry

- 210x55mm shock, I only see a CCDB on Jenson, DVO Topaz in 216x57.5mm may work but would have to check out geometry changes
- No reviews, brand new frame
- Cost, $730 (still reasonable, just more than FS27)

Dengfu FM006 / M06 -

- Cost, $580 (found on forum, not sure if current)
- Weight (2100g)
- Seems like good cable routing

- Not sure yet about travel, website doesn't say, I've seen 100mm on forums, but some Scott sparks also are 130mm (I've seen this geometry compared to either Scott Spark or Yeti ASRC)
- Not much info on website, geometry tab doesn't show anything
- Low bottom bracket
- Same rear shock size as FS27
- BB92
- Lack of pivot on rear triangle

After writing this down on paper, I think it's pretty obvious that I like the ICAN frames more than the FS27, but it's unfortunate since I was really wanting to work with Carbon Speed.  The Dengfu just seems to be lacking info, and I need to email them.  I'd like to hear if any of my opinions are off, since I'm fairly new to this sport.  The ICAN frames may just be lacking con's because I missed something or because there's no reviews out about them.  But I really like the overall geometry and solid design of the bikes.  I think it comes down to figuring out what travel I am aiming for.  I'm in SE Michigan, which doesn't require any crazy high travel bikes (we do have lots and lots of roots, so the plus tires along with some travel is definitely nice).  But I'd also like it to be capable enough to bring along on a trip to the upper peninsula to Copper Harbor or a road trip to Colorado and such.  A new trail opened up here that also has quite a bit of jumps, so I don't want to limit myself when I start to get faster and higher.  I feel like with the new tech in forks, shocks, and geometry you can get away with a little higher travel and still have a decent climbing bike.  That leads me to the ICAN P9, but I also don't want to get in over my head and get worn out on climbs.  Thanks!

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