X-Fusion Sweep
OldManBike
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I wonder if you'll be able to swap out the RL2 damper for the HLR. Any ideas on that?
This makes no sense. X-Fusion has been ahead of the curve for years. I've been riding one for three years now. 650b sweet. My bike was transformed.
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I believe he was referring to their time-to-market. For instance, the old 34mm 650b-capable Slant was announced exactly this time last year, as a 2012-relabeled-2013 model supposed to be available late summer 2012. It has yet to enter the retail channel.
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Lots of options out there, but most 26" wheel forks I've used were 38/39mm offset, and my favorite 29" wheel forks are both 46mm offset. My 650b fork is smack dab in the middle at 42mm. 51mm is "G2" - Or as I like to call it, "J2" - as in Jeff Jones (who showed and described his geometry to Fisher prior to Fisher's G2 bikes came out).
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So late August/earlySpetember then.
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Not sure if there are fixed Numbers to what´s the "best" ...
All my Marzocchies or RockShox, even my BOS have 40 mm Offset for 26.
Jeremiah Boobar (RockShox Product-Mamager) mentioned in an Inteview 40 mm Offset for 26, 42 mm Offset for 650B and 46 mm for 29.
As far as I know Fox goes the same - that´s why I´m wondering about the Sweeps 46 mm Offset ...
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The idea is that a greater offset reduces trail and makes the steering more nimble, and a lesser offset increases trail and makes the bike more stable, right?
Are there other handling considerations?
Are there other handling considerations?
Info from X-Fusion for the Sweep
1. Distributors will be able to order them Late June/July so expect delivery in July/August. XF USA should have minimal inventory prior to that.
2. A2C @ 150mm is 541mm
3. From X-Fusion the travel can be set anywhere between 80-160mm. From the QBP distributor the options will be 120mm or 160mm.
4. The DLA travel adjust model is specifically 160mm only. It can't be shimmed down as a 150-130 (I asked this question)
Looks like a nice fork and the starting MSRP of $599 is actually below the dealer cost of the lowest priced Rock Shox Pike fork. I may get one of these Sweeps when they finally become available but in the mean time I really needed a fork so I bought a White Bros. 150mm Loop 650B fork (also internally adjusts to 130 and 140). The Loop can take the tallest 650B wheels but it's A/C is just 534mm @ 150mm vs 541mm for the Sweep and 545mm for the Fox 34 and RS Pike (Revelation 32 650B is 539mm) .
1. Distributors will be able to order them Late June/July so expect delivery in July/August. XF USA should have minimal inventory prior to that.
2. A2C @ 150mm is 541mm
3. From X-Fusion the travel can be set anywhere between 80-160mm. From the QBP distributor the options will be 120mm or 160mm.
4. The DLA travel adjust model is specifically 160mm only. It can't be shimmed down as a 150-130 (I asked this question)
Looks like a nice fork and the starting MSRP of $599 is actually below the dealer cost of the lowest priced Rock Shox Pike fork. I may get one of these Sweeps when they finally become available but in the mean time I really needed a fork so I bought a White Bros. 150mm Loop 650B fork (also internally adjusts to 130 and 140). The Loop can take the tallest 650B wheels but it's A/C is just 534mm @ 150mm vs 541mm for the Sweep and 545mm for the Fox 34 and RS Pike (Revelation 32 650B is 539mm) .
There are not fixed numbers but @ X-Fusion we've decided to stick with the 42/46/51 for 26in/27.5in/29in forks moving forward. It gives us very similar trail and steering characteristics across the board. Personally I much prefer the the larger offset, especially on the 29er. Much more stable and less twitchy steering characteristics. You could argue the 38-40mm 26 inch offset or 46mm 29inch offset would be better on a full xc ht but that's because you aren't blasting through anything technical at a billion where you want slower more stable steering.
John Hauer
X-Fusion
Good info and I'll also add that the White Brothers Loop 650B fork has a 45mm offset
There are probably other factors but when I went from my converted 08 650B Cannondale Prophet running a regular Fox 26" fork to my 2011 Jamis Dakar B2 with the White Brothers Loop the effect was dramatic (both bikes have 69 degree head angles so apples to apples in that dept.). The Prophet was so twitchy you really had to be careful where it was pointed and it deflected easily. I more or less got used to it figuring it's just the steep head angle. Then I started riding the Dakar with the Loop fork and OMG it was so much more stable, went where you pointed it without all the little (sometimes big) corrections or drama and I could actually relax. Prophet had a 9mm thru axle and the Loop a 15mm but I'm pretty sure it was the offset of the fork working it's magic.
Thought I'd share that little tidbit.
This doesn't make sense to me. More offset = less trail = MORE twitchy (not less).
Yeah, that was a bit confusing.. I shouldn't have used the word slower. More offset = less trail = faster steering
Greater offset just puts the wheel out in front of you so increases wheel base for that stability at speed. Also makes the wheel easier to turn because it's not underneath you giving that jack knife feel when turning abruptly. Even though the steering is faster with more offset, it's smoother because of the contact angle the wheel is at in relation to the ground.
The goal with going with 42/46/51 offsets was to standardize our trail across the board.
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