Trailer Project – Part Two

After Donna proofread my post yesterday, she headed out on the Spyder to meet her friend Julia in Scottsdale. It was about a 20-mile ride each way. It was Donna’s first time riding the Spyder on the freeway – she took the loop 202 to the 101 to Old Town Scottsdale. They had lunch and visited at Arcadia Farms Cafe on east 1st Avenue. Donna thought very highly of the restaurant – food, service, ambiance. What more can you ask for?

When she came home, she told me she felt a vibration in the footpegs at ~5,100 rpm at 70 mph. Donna is pretty sensitive to these things and always tells me to see if I think there’s a problem.

I spent the afternoon working on the trailer while Donna was away. I wanted to get the SteepGrade bike rack installation figured out and finalized. I don’t have any affiliation with this company – Donna found them online and although not inexpensive, it looked like a good fit for us. With our new 8.5-foot wide trailer, I have room to secure the bicycles on the floor across the trailer. A little work with a tape measure had me visualizing how it could work.

I like to balance the load in the trailer as much as possible. This means some heavy stuff needs to be in front of the axles to offset weight behind the axles. Side-to-side weight is also a consideration. I think I have it pretty well sussed-out at this point. We have three bicycles – two road bikes and my mountain bike. They will travel just ahead of the axles cross-ways in the trailer. There’s enough room for me to walk past the bikes on the right side of the trailer to access the rear portion when needed. The SteepGrade racks mount the front fork with the wheel removed. The wheel is then fastened to a holder that fits over the top tube of the bike. This makes for a compact arrangement of the bikes. I needed to add some D-rings to the trailer to attach the tie-downs for the bikes.

D-rings and tape measure - measure twice

D-rings and tape measure – measure twice

I used one-inch self-drilling screws to attach the D-rings to the steel wall studs in the trailer.

This is how they'll ride

This is how they’ll ride

I think I’ll put a furniture pad over the bike in the center to prevent damage if they should move about as we travel down the road.

3_23bkrck2

I wouldn’t want them to contact each other

This photo shows how the system works.

The set up on my Specialized Crave mountain bike

The set up on my Specialized Crave mountain bike

I also installed tie-down points for the rear of the Spyder. The front wheels will be fastened to the flush-mount rings that came with the Interstate car hauler trailer.

Meanwhile I’d treated the burn on my right leg – see yesterday’s post – with 100% aloe vera gel. It seems to be helping. Hopefully this doesn’t turn into any kind of a big deal.

I rode the Spyder to Red, White and Brew after Donna came home. I made a pass at 5,100 rpm at 70 mph to check out the vibration she felt. The Spyder is powered by a Rotax 998cc 60-degree V-twin engine. This layout is inherently unbalanced. The narrow 60-degree layout makes for a compact front-to-rear dimension – which is good for a motorcycle. Rotax compensates for the imbalance by employing counter-balance shafts in the engine. However, counter-balance shafts can’t eliminate all vibrations at all engine speeds. There will always be certain engine speeds that result in vibration. In my opinion, the foot peg vibration Donna felt at 5,100 rpm is a normal result of the inherent imbalance of a 60-degree V-twin engine.

Donna prepared turmeric chicken thighs for dinner. This is a dish she’s prepared before. This time she felt like the spice was missing its usual kick. The chicken was still tasty – just not the same as before. After thinking about it, she realized that she’s had that bottle of spice for 3-4 years – time for some fresh spice! In the future she’ll buy turmeric in smaller quantities.

3_23dnrplTimeric chicken with rice and asparagus

Turmeric chicken with rice and asparagus

Today we’ll have another typical March day in central Arizona with temperatures reaching 80 degrees. After pickleball, I’ll continue work on the trailer. I have a couple of other projects that I need to attend to before we leave here.