OK, sorry about the detour on guide system tech...umbertom said:Rohloff is more similar to PVD's design than the DMR in that there's only one mount
PVD's could be flipped so that the box hangs down instead of hiding the mount
on some bikes the shock mount can be in the way and only leave clearance to be attached this way
also the truvativ box protects the chain in all directions, up and down, while the Rohloff leaves more room for play
I have a great idea here. I got the idea from the DMR/ Rohloff devices. I've seen something like that before. Oh yeah, a front derailleur. It's what they've been using for about 100 years to keep the chain on the front chainring. Here's one from Shimano..obionespeedonly said:OK, I'll play.
Now, both Rohloff and DMR already make a similar device, both in the range of $35-$60, complete, albeit they're noisy as all heck. MRP's prototype model they demo'd this past season is in the works, since this style system is currently the hot ticket for Kona's bikes.
Also, what about the different seat tube diameters out there??
~I'd be interested in trying out one for the Surly, so I can try running run gears out back, instead of having to yank my driveside crankarm cup to mount the MRP System 2 I have.
**How are you addressing the differing arcs of the different sized chainrings out there?? With the slotted design of the Truvativ back plate, you can change the angle of the upper plate system, in which the DMR system pictured below allows for.
You might gain a little more credibility if you didn't come onto these boards and slam every idea that isn't your own.pvd said:
Thanks Brad, I forgot that one! So if I use a take-off '98 Deore LX-TP/TS that was for free, I beat you then!! Free's cheap, right!! Hold it though, what about sticking in a 1" section of Rock Shox elastomer in the front, after drilling through it, and securing it via zip tie! Old-School stylee baby!!aka brad said:I have a great idea here. I got the idea fro the DMR/ Rohloff devices. I've seen something like that before. Oh yeah, a front derailleur. It's what they've been using for about 100 years to keep the chain on the front chainring. Here's one from Shimano..
It's completely adjustable, weighs 128gm and only costs $25.
Do I win?