Tag Archives: V-Rex

Posts about my V-Rex recumbent bike.

Don’t know my own strength

On the way into work Wednesday morning, I pulled up to cross State Street, just a block from my office in Young Graduate House, a high rise dorm that’s been converted to office space, and as I pushed off I felt the seat back on V-Rex sag and something poked me in the side. Uh, oh. On brief inspection, I could see the seat was moving free of the cross member that mounts it to the sprint braces. WIthout that support, the seat (and therefore the bike) was out of action. Thankfully our van was empty and my wife graciously came by at lunch and helped me take the V-Rex back home. Today, I got down to figuring out what happened and fixing it.

Rans SeatThe Rans seat was one of the first really popular recumbent seats, appearing not only on Rans products, like my V-Rex, but also on other companies bikes as well. It is a large foam covered triangular base, with a cross braced, mesh fabric covered frame for a back. It attaches to the bike at the seat bottom and to sprint braces which usually go back to the rear triangle. The attachment points are marked by arrows in the picture on the right.

The upper mount point is part of a cross brace between the two vertical tubes that make up the seat back. The pop rivets that hold that in place had failed and cross piece had come free.

Cross Piece

After drilling out the failed pop rivets, and banging out the slight bend that one of the sides of the cross piece has acquired thanks to that last push off, I was able to pop rivet the piece back where it belonged. Then I put the seat back on the V-Rex and adjusted the tilt and distance from the pedals to fit myself.

I like the sliding seat back arrangement on the V-Rex better than a sliding pedal tube for several reasons. First, it’s simple to adjust. On the V-Rex the slide is help in place by a quick release skewer. Second, there’s no chain adjustment that needs to be performed whenever the seat is moved.

I’m looking forward to being back on the V-Rex come Monday’s ride to work.

Third Time’s the Charm

I wrote in a previous blog about commuting to work by velomobile. I found writing just about the Leitra a bit confining and wanted a broader scope. 🙂 So, here it is. This blog will be about bike commuting, managing a technical team, photography and other random things. It’s about trips that take some effort and by expending the effort the traveler learns and grows.
Along the way, I upgraded my server to OS X Lion and lost the nice Apple provided Blog tools. 🙁 So, I took the advice of my friend Hal Stern and made the jump to WordPress. My third blog platform. It’s pretty slick. So I imported most of my previous blog posts into this one. I think this will carry me for a while.

New Brake Pads, Warmer Weather

It’s finally warming up in Indiana and I’m back to riding the V-Rex. I installed new brake pads on the V-Rex last weekend.
That’s my V-Rex leaning up against my work stand. It was nice enough to work outside which is more pleasant when doing tasks like lubing the chain.
The V-Rex has Magura hydraulic rim brakes. One of the best feature of these brakes is their tool free, adjustment free brake pad replacement. The pads snap onto a fitting in the brake assembly while the assembly stays in place. The only thing you notice is that the brake handles do not travel as far with the new pads. It’s quick and easy.
Unfortunately, the Magura’s are very powerful and therefore hard on the rims. I have box section, mountain bike rims on the V-Rex now after damaging less sturdy rims with the brakes. I think if I were to replace the brakes on the V-Rex now, I’d opt for hydraulic disk brakes like I have the Leitra.

Spring Parts

Magura Rim Brake Pad
Much as I have enjoyed riding the Leitra all winter, I’m really looking forward to switching to by fair weather ride, a Rans V-Rex. Looking over the V-Rex last weekend, I think I’m in pretty good shape. The drive train is in need of a good lube job, but is otherwise ready to go. I need new brake pads for the Magura rim brakes which can be hard to locate, but Cambria had them which made that part easy. Now all I need is some warmer weather…